20488808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1907}}^1$

素因数の和:2009

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 20723992

約数列:

[1, 2, 4, 8, 17, 34, 68, 79, 136, 158, 316, 632, 1343, 1907, 2686, 3814, 5372, 7628, 10744, 15256, 32419, 64838, 129676, 150653, 259352, 301306, 602612, 1205224, 2561101, 5122202, 10244404, 20488808]

約数ペア:

[(1, 20488808), (2, 10244404), (4, 5122202), (8, 2561101), (17, 1205224), (34, 602612), (68, 301306), (79, 259352), (136, 150653), (158, 129676), (316, 64838), (632, 32419), (1343, 15256), (1907, 10744), (2686, 7628), (3814, 5372)]