20216800

素因数分解:

$2^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:740

約数の個数: 72

約数和(自身を含む): 50762376

約数和(自身を除く): 30545576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 74, 80, 100, 148, 160, 185, 200, 296, 370, 400, 592, 683, 740, 800, 925, 1184, 1366, 1480, 1850, 2732, 2960, 3415, 3700, 5464, 5920, 6830, 7400, 10928, 13660, 14800, 17075, 21856, 25271, 27320, 29600, 34150, 50542, 54640, 68300, 101084, 109280, 126355, 136600, 202168, 252710, 273200, 404336, 505420, 546400, 631775, 808672, 1010840, 1263550, 2021680, 2527100, 4043360, 5054200, 10108400, 20216800]

約数ペア:

[(1, 20216800), (2, 10108400), (4, 5054200), (5, 4043360), (8, 2527100), (10, 2021680), (16, 1263550), (20, 1010840), (25, 808672), (32, 631775), (37, 546400), (40, 505420), (50, 404336), (74, 273200), (80, 252710), (100, 202168), (148, 136600), (160, 126355), (185, 109280), (200, 101084), (296, 68300), (370, 54640), (400, 50542), (592, 34150), (683, 29600), (740, 27320), (800, 25271), (925, 21856), (1184, 17075), (1366, 14800), (1480, 13660), (1850, 10928), (2732, 7400), (2960, 6830), (3415, 5920), (3700, 5464)]