61872020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3911}}^1$

素因数の和:4040

約数の個数: 48

約数和(自身を含む): 149845248

約数和(自身を除く): 87973228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3911, 3955, 7822, 7910, 15644, 15820, 19555, 27377, 39110, 54754, 78220, 109508, 136885, 273770, 441943, 547540, 883886, 1767772, 2209715, 3093601, 4419430, 6187202, 8838860, 12374404, 15468005, 30936010, 61872020]

約数ペア:

[(1, 61872020), (2, 30936010), (4, 15468005), (5, 12374404), (7, 8838860), (10, 6187202), (14, 4419430), (20, 3093601), (28, 2209715), (35, 1767772), (70, 883886), (113, 547540), (140, 441943), (226, 273770), (452, 136885), (565, 109508), (791, 78220), (1130, 54754), (1582, 39110), (2260, 27377), (3164, 19555), (3911, 15820), (3955, 15644), (7822, 7910)]