257166140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 288

約数和(自身を含む): 772208640

約数和(自身を除く): 515042500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 19, 20, 22, 28, 34, 35, 38, 44, 47, 55, 68, 70, 76, 77, 85, 94, 95, 110, 119, 121, 133, 140, 154, 170, 187, 188, 190, 209, 220, 235, 238, 242, 266, 308, 323, 329, 340, 374, 380, 385, 418, 470, 476, 484, 517, 532, 595, 605, 646, 658, 665, 748, 770, 799, 836, 847, 893, 935, 940, 1034, 1045, 1190, 1210, 1292, 1309, 1316, 1330, 1463, 1540, 1598, 1615, 1645, 1694, 1786, 1870, 2057, 2068, 2090, 2261, 2299, 2380, 2420, 2585, 2618, 2660, 2926, 3196, 3230, 3290, 3388, 3553, 3572, 3619, 3740, 3995, 4114, 4180, 4235, 4465, 4522, 4598, 5170, 5236, 5593, 5687, 5852, 6251, 6460, 6545, 6580, 7106, 7238, 7315, 7990, 8228, 8470, 8789, 8930, 9044, 9196, 9823, 10285, 10340, 11186, 11305, 11374, 11495, 12502, 13090, 14212, 14399, 14476, 14630, 15181, 15980, 16093, 16940, 17578, 17765, 17860, 18095, 19646, 20570, 22372, 22610, 22748, 22990, 24871, 25004, 26180, 27965, 28435, 28798, 29260, 30362, 31255, 32186, 35156, 35530, 36190, 39083, 39292, 39809, 41140, 43945, 45220, 45980, 49115, 49742, 55930, 56870, 57596, 60724, 61523, 62510, 64372, 68761, 71060, 71995, 72380, 75905, 78166, 79618, 80465, 87890, 96679, 98230, 99484, 106267, 108053, 111860, 113740, 123046, 124355, 125020, 137522, 143990, 151810, 156332, 159236, 160930, 166991, 175780, 193358, 195415, 196460, 199045, 212534, 216106, 246092, 248710, 273581, 275044, 287980, 303620, 307615, 321860, 333982, 343805, 386716, 390830, 398090, 425068, 432212, 483395, 497420, 531335, 540265, 547162, 615230, 667964, 676753, 687610, 756371, 781660, 796180, 834955, 966790, 1062670, 1080530, 1094324, 1168937, 1230460, 1353506, 1367905, 1375220, 1512742, 1669910, 1836901, 1933580, 2125340, 2161060, 2337874, 2707012, 2735810, 3025484, 3339820, 3383765, 3673802, 3781855, 4675748, 5471620, 5844685, 6767530, 7347604, 7563710, 9184505, 11689370, 12858307, 13535060, 15127420, 18369010, 23378740, 25716614, 36738020, 51433228, 64291535, 128583070, 257166140]

約数ペア:

[(1, 257166140), (2, 128583070), (4, 64291535), (5, 51433228), (7, 36738020), (10, 25716614), (11, 23378740), (14, 18369010), (17, 15127420), (19, 13535060), (20, 12858307), (22, 11689370), (28, 9184505), (34, 7563710), (35, 7347604), (38, 6767530), (44, 5844685), (47, 5471620), (55, 4675748), (68, 3781855), (70, 3673802), (76, 3383765), (77, 3339820), (85, 3025484), (94, 2735810), (95, 2707012), (110, 2337874), (119, 2161060), (121, 2125340), (133, 1933580), (140, 1836901), (154, 1669910), (170, 1512742), (187, 1375220), (188, 1367905), (190, 1353506), (209, 1230460), (220, 1168937), (235, 1094324), (238, 1080530), (242, 1062670), (266, 966790), (308, 834955), (323, 796180), (329, 781660), (340, 756371), (374, 687610), (380, 676753), (385, 667964), (418, 615230), (470, 547162), (476, 540265), (484, 531335), (517, 497420), (532, 483395), (595, 432212), (605, 425068), (646, 398090), (658, 390830), (665, 386716), (748, 343805), (770, 333982), (799, 321860), (836, 307615), (847, 303620), (893, 287980), (935, 275044), (940, 273581), (1034, 248710), (1045, 246092), (1190, 216106), (1210, 212534), (1292, 199045), (1309, 196460), (1316, 195415), (1330, 193358), (1463, 175780), (1540, 166991), (1598, 160930), (1615, 159236), (1645, 156332), (1694, 151810), (1786, 143990), (1870, 137522), (2057, 125020), (2068, 124355), (2090, 123046), (2261, 113740), (2299, 111860), (2380, 108053), (2420, 106267), (2585, 99484), (2618, 98230), (2660, 96679), (2926, 87890), (3196, 80465), (3230, 79618), (3290, 78166), (3388, 75905), (3553, 72380), (3572, 71995), (3619, 71060), (3740, 68761), (3995, 64372), (4114, 62510), (4180, 61523), (4235, 60724), (4465, 57596), (4522, 56870), (4598, 55930), (5170, 49742), (5236, 49115), (5593, 45980), (5687, 45220), (5852, 43945), (6251, 41140), (6460, 39809), (6545, 39292), (6580, 39083), (7106, 36190), (7238, 35530), (7315, 35156), (7990, 32186), (8228, 31255), (8470, 30362), (8789, 29260), (8930, 28798), (9044, 28435), (9196, 27965), (9823, 26180), (10285, 25004), (10340, 24871), (11186, 22990), (11305, 22748), (11374, 22610), (11495, 22372), (12502, 20570), (13090, 19646), (14212, 18095), (14399, 17860), (14476, 17765), (14630, 17578), (15181, 16940), (15980, 16093)]