64416880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1126

約数の個数: 80

約数和(自身を含む): 165846528

約数和(自身を除く): 101429648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1031, 1136, 1420, 1562, 2062, 2840, 3124, 3905, 4124, 5155, 5680, 6248, 7810, 8248, 10310, 11341, 12496, 15620, 16496, 20620, 22682, 31240, 41240, 45364, 56705, 62480, 73201, 82480, 90728, 113410, 146402, 181456, 226820, 292804, 366005, 453640, 585608, 732010, 805211, 907280, 1171216, 1464020, 1610422, 2928040, 3220844, 4026055, 5856080, 6441688, 8052110, 12883376, 16104220, 32208440, 64416880]

約数ペア:

[(1, 64416880), (2, 32208440), (4, 16104220), (5, 12883376), (8, 8052110), (10, 6441688), (11, 5856080), (16, 4026055), (20, 3220844), (22, 2928040), (40, 1610422), (44, 1464020), (55, 1171216), (71, 907280), (80, 805211), (88, 732010), (110, 585608), (142, 453640), (176, 366005), (220, 292804), (284, 226820), (355, 181456), (440, 146402), (568, 113410), (710, 90728), (781, 82480), (880, 73201), (1031, 62480), (1136, 56705), (1420, 45364), (1562, 41240), (2062, 31240), (2840, 22682), (3124, 20620), (3905, 16496), (4124, 15620), (5155, 12496), (5680, 11341), (6248, 10310), (7810, 8248)]