278182840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17257}}^1$

素因数の和:17312

約数の個数: 64

約数和(自身を含む): 695842560

約数和(自身を除く): 417659720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 17257, 34514, 69028, 86285, 138056, 172570, 224341, 345140, 448682, 534967, 690280, 897364, 1069934, 1121705, 1794728, 2139868, 2243410, 2674835, 4279736, 4486820, 5349670, 6954571, 8973640, 10699340, 13909142, 21398680, 27818284, 34772855, 55636568, 69545710, 139091420, 278182840]

約数ペア:

[(1, 278182840), (2, 139091420), (4, 69545710), (5, 55636568), (8, 34772855), (10, 27818284), (13, 21398680), (20, 13909142), (26, 10699340), (31, 8973640), (40, 6954571), (52, 5349670), (62, 4486820), (65, 4279736), (104, 2674835), (124, 2243410), (130, 2139868), (155, 1794728), (248, 1121705), (260, 1069934), (310, 897364), (403, 690280), (520, 534967), (620, 448682), (806, 345140), (1240, 224341), (1612, 172570), (2015, 138056), (3224, 86285), (4030, 69028), (8060, 34514), (16120, 17257)]