81559840

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:674

約数の個数: 96

約数和(自身を含む): 206841600

約数和(自身を除く): 125281760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 74, 80, 92, 115, 148, 160, 184, 185, 230, 296, 368, 370, 460, 592, 599, 736, 740, 851, 920, 1184, 1198, 1480, 1702, 1840, 2396, 2960, 2995, 3404, 3680, 4255, 4792, 5920, 5990, 6808, 8510, 9584, 11980, 13616, 13777, 17020, 19168, 22163, 23960, 27232, 27554, 34040, 44326, 47920, 55108, 68080, 68885, 88652, 95840, 110216, 110815, 136160, 137770, 177304, 220432, 221630, 275540, 354608, 440864, 443260, 509749, 551080, 709216, 886520, 1019498, 1102160, 1773040, 2038996, 2204320, 2548745, 3546080, 4077992, 5097490, 8155984, 10194980, 16311968, 20389960, 40779920, 81559840]

約数ペア:

[(1, 81559840), (2, 40779920), (4, 20389960), (5, 16311968), (8, 10194980), (10, 8155984), (16, 5097490), (20, 4077992), (23, 3546080), (32, 2548745), (37, 2204320), (40, 2038996), (46, 1773040), (74, 1102160), (80, 1019498), (92, 886520), (115, 709216), (148, 551080), (160, 509749), (184, 443260), (185, 440864), (230, 354608), (296, 275540), (368, 221630), (370, 220432), (460, 177304), (592, 137770), (599, 136160), (736, 110815), (740, 110216), (851, 95840), (920, 88652), (1184, 68885), (1198, 68080), (1480, 55108), (1702, 47920), (1840, 44326), (2396, 34040), (2960, 27554), (2995, 27232), (3404, 23960), (3680, 22163), (4255, 19168), (4792, 17020), (5920, 13777), (5990, 13616), (6808, 11980), (8510, 9584)]