281372280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2557}}^1$

素因数の和:2709

約数の個数: 128

約数和(自身を含む): 972449280

約数和(自身を除く): 691077000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1965, 2557, 2620, 2751, 3144, 3668, 3930, 4585, 5114, 5240, 5502, 7336, 7671, 7860, 9170, 10228, 11004, 12785, 13755, 15342, 15720, 17899, 18340, 20456, 22008, 25570, 27510, 30684, 35798, 36680, 38355, 51140, 53697, 55020, 61368, 71596, 76710, 89495, 102280, 107394, 110040, 143192, 153420, 178990, 214788, 268485, 306840, 334967, 357980, 429576, 536970, 669934, 715960, 1004901, 1073940, 1339868, 1674835, 2009802, 2147880, 2344769, 2679736, 3349670, 4019604, 4689538, 5024505, 6699340, 7034307, 8039208, 9379076, 10049010, 11723845, 13398680, 14068614, 18758152, 20098020, 23447690, 28137228, 35171535, 40196040, 46895380, 56274456, 70343070, 93790760, 140686140, 281372280]

約数ペア:

[(1, 281372280), (2, 140686140), (3, 93790760), (4, 70343070), (5, 56274456), (6, 46895380), (7, 40196040), (8, 35171535), (10, 28137228), (12, 23447690), (14, 20098020), (15, 18758152), (20, 14068614), (21, 13398680), (24, 11723845), (28, 10049010), (30, 9379076), (35, 8039208), (40, 7034307), (42, 6699340), (56, 5024505), (60, 4689538), (70, 4019604), (84, 3349670), (105, 2679736), (120, 2344769), (131, 2147880), (140, 2009802), (168, 1674835), (210, 1339868), (262, 1073940), (280, 1004901), (393, 715960), (420, 669934), (524, 536970), (655, 429576), (786, 357980), (840, 334967), (917, 306840), (1048, 268485), (1310, 214788), (1572, 178990), (1834, 153420), (1965, 143192), (2557, 110040), (2620, 107394), (2751, 102280), (3144, 89495), (3668, 76710), (3930, 71596), (4585, 61368), (5114, 55020), (5240, 53697), (5502, 51140), (7336, 38355), (7671, 36680), (7860, 35798), (9170, 30684), (10228, 27510), (11004, 25570), (12785, 22008), (13755, 20456), (15342, 18340), (15720, 17899)]