20012280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2111}}^1$

素因数の和:2204

約数の個数: 64

約数和(自身を含む): 60825600

約数和(自身を除く): 40813320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2111, 2370, 3160, 4222, 4740, 6333, 8444, 9480, 10555, 12666, 16888, 21110, 25332, 31665, 42220, 50664, 63330, 84440, 126660, 166769, 253320, 333538, 500307, 667076, 833845, 1000614, 1334152, 1667690, 2001228, 2501535, 3335380, 4002456, 5003070, 6670760, 10006140, 20012280]

約数ペア:

[(1, 20012280), (2, 10006140), (3, 6670760), (4, 5003070), (5, 4002456), (6, 3335380), (8, 2501535), (10, 2001228), (12, 1667690), (15, 1334152), (20, 1000614), (24, 833845), (30, 667076), (40, 500307), (60, 333538), (79, 253320), (120, 166769), (158, 126660), (237, 84440), (316, 63330), (395, 50664), (474, 42220), (632, 31665), (790, 25332), (948, 21110), (1185, 16888), (1580, 12666), (1896, 10555), (2111, 9480), (2370, 8444), (3160, 6333), (4222, 4740)]