2856221680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^3\times {\mathrm{43}}^1$

素因数の和:133

約数の個数: 240

約数和(自身を含む): 7817847840

約数和(自身を除く): 4961626160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 43, 52, 65, 68, 80, 85, 86, 104, 130, 136, 169, 170, 172, 208, 215, 221, 260, 272, 289, 338, 340, 344, 430, 442, 520, 559, 578, 676, 680, 688, 731, 845, 860, 884, 1040, 1105, 1118, 1156, 1352, 1360, 1445, 1462, 1690, 1720, 1768, 2210, 2236, 2312, 2704, 2795, 2873, 2890, 2924, 3380, 3440, 3536, 3655, 3757, 4420, 4472, 4624, 4913, 5590, 5746, 5780, 5848, 6760, 7267, 7310, 7514, 8840, 8944, 9503, 9826, 11180, 11492, 11560, 11696, 12427, 13520, 14365, 14534, 14620, 15028, 17680, 18785, 19006, 19652, 22360, 22984, 23120, 24565, 24854, 28730, 29068, 29240, 30056, 36335, 37570, 38012, 39304, 44720, 45968, 47515, 48841, 49130, 49708, 57460, 58136, 58480, 60112, 62135, 63869, 72670, 75140, 76024, 78608, 95030, 97682, 98260, 99416, 114920, 116272, 123539, 124270, 127738, 145340, 150280, 152048, 161551, 190060, 195364, 196520, 198832, 211259, 229840, 244205, 247078, 248540, 255476, 290680, 300560, 319345, 323102, 380120, 390728, 393040, 422518, 488410, 494156, 497080, 510952, 581360, 617695, 638690, 646204, 760240, 781456, 807755, 830297, 845036, 976820, 988312, 994160, 1021904, 1056295, 1235390, 1277380, 1292408, 1615510, 1660594, 1690072, 1953640, 1976624, 2100163, 2112590, 2470780, 2554760, 2584816, 2746367, 3231020, 3321188, 3380144, 3907280, 4151485, 4200326, 4225180, 4941560, 5109520, 5492734, 6462040, 6642376, 8302970, 8400652, 8450360, 9883120, 10500815, 10985468, 12924080, 13284752, 13731835, 16605940, 16801304, 16900720, 21001630, 21970936, 27463670, 33211880, 33602608, 35702771, 42003260, 43941872, 54927340, 66423760, 71405542, 84006520, 109854680, 142811084, 168013040, 178513855, 219709360, 285622168, 357027710, 571244336, 714055420, 1428110840, 2856221680]

約数ペア:

[(1, 2856221680), (2, 1428110840), (4, 714055420), (5, 571244336), (8, 357027710), (10, 285622168), (13, 219709360), (16, 178513855), (17, 168013040), (20, 142811084), (26, 109854680), (34, 84006520), (40, 71405542), (43, 66423760), (52, 54927340), (65, 43941872), (68, 42003260), (80, 35702771), (85, 33602608), (86, 33211880), (104, 27463670), (130, 21970936), (136, 21001630), (169, 16900720), (170, 16801304), (172, 16605940), (208, 13731835), (215, 13284752), (221, 12924080), (260, 10985468), (272, 10500815), (289, 9883120), (338, 8450360), (340, 8400652), (344, 8302970), (430, 6642376), (442, 6462040), (520, 5492734), (559, 5109520), (578, 4941560), (676, 4225180), (680, 4200326), (688, 4151485), (731, 3907280), (845, 3380144), (860, 3321188), (884, 3231020), (1040, 2746367), (1105, 2584816), (1118, 2554760), (1156, 2470780), (1352, 2112590), (1360, 2100163), (1445, 1976624), (1462, 1953640), (1690, 1690072), (1720, 1660594), (1768, 1615510), (2210, 1292408), (2236, 1277380), (2312, 1235390), (2704, 1056295), (2795, 1021904), (2873, 994160), (2890, 988312), (2924, 976820), (3380, 845036), (3440, 830297), (3536, 807755), (3655, 781456), (3757, 760240), (4420, 646204), (4472, 638690), (4624, 617695), (4913, 581360), (5590, 510952), (5746, 497080), (5780, 494156), (5848, 488410), (6760, 422518), (7267, 393040), (7310, 390728), (7514, 380120), (8840, 323102), (8944, 319345), (9503, 300560), (9826, 290680), (11180, 255476), (11492, 248540), (11560, 247078), (11696, 244205), (12427, 229840), (13520, 211259), (14365, 198832), (14534, 196520), (14620, 195364), (15028, 190060), (17680, 161551), (18785, 152048), (19006, 150280), (19652, 145340), (22360, 127738), (22984, 124270), (23120, 123539), (24565, 116272), (24854, 114920), (28730, 99416), (29068, 98260), (29240, 97682), (30056, 95030), (36335, 78608), (37570, 76024), (38012, 75140), (39304, 72670), (44720, 63869), (45968, 62135), (47515, 60112), (48841, 58480), (49130, 58136), (49708, 57460)]