216668920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13441}}^1$

素因数の和:13496

約数の個数: 64

約数和(自身を含む): 541981440

約数和(自身を除く): 325312520

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, 13441, 16120, 26882, 53764, 67205, 107528, 134410, 174733, 268820, 349466, 416671, 537640, 698932, 833342, 873665, 1397864, 1666684, 1747330, 2083355, 3333368, 3494660, 4166710, 5416723, 6989320, 8333420, 10833446, 16666840, 21666892, 27083615, 43333784, 54167230, 108334460, 216668920]

約数ペア:

[(1, 216668920), (2, 108334460), (4, 54167230), (5, 43333784), (8, 27083615), (10, 21666892), (13, 16666840), (20, 10833446), (26, 8333420), (31, 6989320), (40, 5416723), (52, 4166710), (62, 3494660), (65, 3333368), (104, 2083355), (124, 1747330), (130, 1666684), (155, 1397864), (248, 873665), (260, 833342), (310, 698932), (403, 537640), (520, 416671), (620, 349466), (806, 268820), (1240, 174733), (1612, 134410), (2015, 107528), (3224, 67205), (4030, 53764), (8060, 26882), (13441, 16120)]