91678040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1699}}^1$

素因数の和:1800

約数の個数: 64

約数和(自身を含む): 220320000

約数和(自身を除く): 128641960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 568, 710, 760, 1349, 1420, 1699, 2698, 2840, 3398, 5396, 6745, 6796, 8495, 10792, 13490, 13592, 16990, 26980, 32281, 33980, 53960, 64562, 67960, 120629, 129124, 161405, 241258, 258248, 322810, 482516, 603145, 645620, 965032, 1206290, 1291240, 2291951, 2412580, 4583902, 4825160, 9167804, 11459755, 18335608, 22919510, 45839020, 91678040]

約数ペア:

[(1, 91678040), (2, 45839020), (4, 22919510), (5, 18335608), (8, 11459755), (10, 9167804), (19, 4825160), (20, 4583902), (38, 2412580), (40, 2291951), (71, 1291240), (76, 1206290), (95, 965032), (142, 645620), (152, 603145), (190, 482516), (284, 322810), (355, 258248), (380, 241258), (568, 161405), (710, 129124), (760, 120629), (1349, 67960), (1420, 64562), (1699, 53960), (2698, 33980), (2840, 32281), (3398, 26980), (5396, 16990), (6745, 13592), (6796, 13490), (8495, 10792)]