18797480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 46826640

約数和(自身を除く): 28029160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 977, 1480, 1924, 1954, 2405, 3848, 3908, 4810, 4885, 7816, 9620, 9770, 12701, 19240, 19540, 25402, 36149, 39080, 50804, 63505, 72298, 101608, 127010, 144596, 180745, 254020, 289192, 361490, 469937, 508040, 722980, 939874, 1445960, 1879748, 2349685, 3759496, 4699370, 9398740, 18797480]

約数ペア:

[(1, 18797480), (2, 9398740), (4, 4699370), (5, 3759496), (8, 2349685), (10, 1879748), (13, 1445960), (20, 939874), (26, 722980), (37, 508040), (40, 469937), (52, 361490), (65, 289192), (74, 254020), (104, 180745), (130, 144596), (148, 127010), (185, 101608), (260, 72298), (296, 63505), (370, 50804), (481, 39080), (520, 36149), (740, 25402), (962, 19540), (977, 19240), (1480, 12701), (1924, 9770), (1954, 9620), (2405, 7816), (3848, 4885), (3908, 4810)]