127591640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{709}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 314388000

約数和(自身を除く): 186796360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 409, 440, 709, 818, 1418, 1636, 2045, 2836, 3272, 3545, 4090, 4499, 5672, 7090, 7799, 8180, 8998, 14180, 15598, 16360, 17996, 22495, 28360, 31196, 35992, 38995, 44990, 62392, 77990, 89980, 155980, 179960, 289981, 311960, 579962, 1159924, 1449905, 2319848, 2899810, 3189791, 5799620, 6379582, 11599240, 12759164, 15948955, 25518328, 31897910, 63795820, 127591640]

約数ペア:

[(1, 127591640), (2, 63795820), (4, 31897910), (5, 25518328), (8, 15948955), (10, 12759164), (11, 11599240), (20, 6379582), (22, 5799620), (40, 3189791), (44, 2899810), (55, 2319848), (88, 1449905), (110, 1159924), (220, 579962), (409, 311960), (440, 289981), (709, 179960), (818, 155980), (1418, 89980), (1636, 77990), (2045, 62392), (2836, 44990), (3272, 38995), (3545, 35992), (4090, 31196), (4499, 28360), (5672, 22495), (7090, 17996), (7799, 16360), (8180, 15598), (8998, 14180)]