1297184440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{17539}}^1$

素因数の和:17636

約数の個数: 48

約数和(自身を含む): 2988289800

約数和(自身を除く): 1691105360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 3698, 7396, 9245, 14792, 17539, 18490, 35078, 36980, 70156, 73960, 87695, 140312, 175390, 350780, 701560, 754177, 1508354, 3016708, 3770885, 6033416, 7541770, 15083540, 30167080, 32429611, 64859222, 129718444, 162148055, 259436888, 324296110, 648592220, 1297184440]

約数ペア:

[(1, 1297184440), (2, 648592220), (4, 324296110), (5, 259436888), (8, 162148055), (10, 129718444), (20, 64859222), (40, 32429611), (43, 30167080), (86, 15083540), (172, 7541770), (215, 6033416), (344, 3770885), (430, 3016708), (860, 1508354), (1720, 754177), (1849, 701560), (3698, 350780), (7396, 175390), (9245, 140312), (14792, 87695), (17539, 73960), (18490, 70156), (35078, 36980)]