21820249990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:467

約数の個数: 256

約数和(自身を含む): 53210234880

約数和(自身を除く): 31389984890

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 53, 55, 70, 77, 95, 106, 107, 110, 133, 154, 190, 209, 214, 263, 265, 266, 371, 385, 418, 526, 530, 535, 583, 665, 742, 749, 770, 1007, 1045, 1070, 1166, 1177, 1315, 1330, 1463, 1498, 1841, 1855, 2014, 2033, 2090, 2354, 2630, 2893, 2915, 2926, 3682, 3710, 3745, 4066, 4081, 4997, 5035, 5671, 5786, 5830, 5885, 7049, 7315, 7490, 8162, 8239, 9205, 9994, 10070, 10165, 11077, 11342, 11770, 13939, 14098, 14231, 14465, 14630, 16478, 18410, 20251, 20330, 20405, 22154, 22363, 24985, 27878, 28141, 28355, 28462, 28930, 34979, 35245, 39697, 40502, 40810, 41195, 44726, 49970, 54967, 55385, 56282, 56710, 62381, 69695, 69958, 70490, 71155, 77539, 79394, 82390, 97573, 101255, 107749, 109934, 110770, 111815, 124762, 139390, 140705, 142310, 153329, 155078, 156541, 174895, 195146, 196987, 198485, 202510, 215498, 223630, 264841, 274835, 281410, 306658, 309551, 311905, 313082, 349790, 384769, 387695, 393974, 396970, 436667, 487865, 529682, 534679, 538745, 549670, 619102, 623810, 754243, 766645, 769538, 775390, 782705, 873334, 975730, 984935, 1069358, 1073303, 1077490, 1185239, 1324205, 1491473, 1508486, 1533290, 1547755, 1565410, 1853887, 1923845, 1969870, 2146606, 2166857, 2183335, 2370478, 2648410, 2673395, 2913251, 2982946, 3095510, 3707774, 3742753, 3771215, 3847690, 4333714, 4366670, 5346790, 5366515, 5826502, 5881469, 5926195, 7457365, 7485506, 7542430, 8296673, 9269435, 10440311, 10733030, 10834285, 11762938, 11852390, 14566255, 14914730, 16406203, 16593346, 18538870, 18713765, 20392757, 20880622, 21668570, 28337987, 29132510, 29407345, 32812406, 37427530, 40785514, 41170283, 41483365, 52201555, 56675974, 58814690, 82031015, 82340566, 82966730, 101963785, 104403110, 114843421, 141689935, 164062030, 198365909, 203927570, 205851415, 229686842, 283379870, 311717857, 396731818, 411702830, 574217105, 623435714, 991829545, 1148434210, 1558589285, 1983659090, 2182024999, 3117178570, 4364049998, 10910124995, 21820249990]

約数ペア:

[(1, 21820249990), (2, 10910124995), (5, 4364049998), (7, 3117178570), (10, 2182024999), (11, 1983659090), (14, 1558589285), (19, 1148434210), (22, 991829545), (35, 623435714), (38, 574217105), (53, 411702830), (55, 396731818), (70, 311717857), (77, 283379870), (95, 229686842), (106, 205851415), (107, 203927570), (110, 198365909), (133, 164062030), (154, 141689935), (190, 114843421), (209, 104403110), (214, 101963785), (263, 82966730), (265, 82340566), (266, 82031015), (371, 58814690), (385, 56675974), (418, 52201555), (526, 41483365), (530, 41170283), (535, 40785514), (583, 37427530), (665, 32812406), (742, 29407345), (749, 29132510), (770, 28337987), (1007, 21668570), (1045, 20880622), (1070, 20392757), (1166, 18713765), (1177, 18538870), (1315, 16593346), (1330, 16406203), (1463, 14914730), (1498, 14566255), (1841, 11852390), (1855, 11762938), (2014, 10834285), (2033, 10733030), (2090, 10440311), (2354, 9269435), (2630, 8296673), (2893, 7542430), (2915, 7485506), (2926, 7457365), (3682, 5926195), (3710, 5881469), (3745, 5826502), (4066, 5366515), (4081, 5346790), (4997, 4366670), (5035, 4333714), (5671, 3847690), (5786, 3771215), (5830, 3742753), (5885, 3707774), (7049, 3095510), (7315, 2982946), (7490, 2913251), (8162, 2673395), (8239, 2648410), (9205, 2370478), (9994, 2183335), (10070, 2166857), (10165, 2146606), (11077, 1969870), (11342, 1923845), (11770, 1853887), (13939, 1565410), (14098, 1547755), (14231, 1533290), (14465, 1508486), (14630, 1491473), (16478, 1324205), (18410, 1185239), (20251, 1077490), (20330, 1073303), (20405, 1069358), (22154, 984935), (22363, 975730), (24985, 873334), (27878, 782705), (28141, 775390), (28355, 769538), (28462, 766645), (28930, 754243), (34979, 623810), (35245, 619102), (39697, 549670), (40502, 538745), (40810, 534679), (41195, 529682), (44726, 487865), (49970, 436667), (54967, 396970), (55385, 393974), (56282, 387695), (56710, 384769), (62381, 349790), (69695, 313082), (69958, 311905), (70490, 309551), (71155, 306658), (77539, 281410), (79394, 274835), (82390, 264841), (97573, 223630), (101255, 215498), (107749, 202510), (109934, 198485), (110770, 196987), (111815, 195146), (124762, 174895), (139390, 156541), (140705, 155078), (142310, 153329)]