38456440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1324

約数の個数: 64

約数和(自身を含む): 95800320

約数和(自身を除く): 57343880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1231, 1420, 1562, 2462, 2840, 3124, 3905, 4924, 6155, 6248, 7810, 9848, 12310, 13541, 15620, 24620, 27082, 31240, 49240, 54164, 67705, 87401, 108328, 135410, 174802, 270820, 349604, 437005, 541640, 699208, 874010, 961411, 1748020, 1922822, 3496040, 3845644, 4807055, 7691288, 9614110, 19228220, 38456440]

約数ペア:

[(1, 38456440), (2, 19228220), (4, 9614110), (5, 7691288), (8, 4807055), (10, 3845644), (11, 3496040), (20, 1922822), (22, 1748020), (40, 961411), (44, 874010), (55, 699208), (71, 541640), (88, 437005), (110, 349604), (142, 270820), (220, 174802), (284, 135410), (355, 108328), (440, 87401), (568, 67705), (710, 54164), (781, 49240), (1231, 31240), (1420, 27082), (1562, 24620), (2462, 15620), (2840, 13541), (3124, 12310), (3905, 9848), (4924, 7810), (6155, 6248)]