81097480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 194400000

約数和(自身を除く): 113302520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 239, 340, 478, 499, 680, 956, 998, 1195, 1912, 1996, 2390, 2495, 3992, 4063, 4780, 4990, 8126, 8483, 9560, 9980, 16252, 16966, 19960, 20315, 32504, 33932, 40630, 42415, 67864, 81260, 84830, 119261, 162520, 169660, 238522, 339320, 477044, 596305, 954088, 1192610, 2027437, 2385220, 4054874, 4770440, 8109748, 10137185, 16219496, 20274370, 40548740, 81097480]

約数ペア:

[(1, 81097480), (2, 40548740), (4, 20274370), (5, 16219496), (8, 10137185), (10, 8109748), (17, 4770440), (20, 4054874), (34, 2385220), (40, 2027437), (68, 1192610), (85, 954088), (136, 596305), (170, 477044), (239, 339320), (340, 238522), (478, 169660), (499, 162520), (680, 119261), (956, 84830), (998, 81260), (1195, 67864), (1912, 42415), (1996, 40630), (2390, 33932), (2495, 32504), (3992, 20315), (4063, 19960), (4780, 16966), (4990, 16252), (8126, 9980), (8483, 9560)]