20674360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1571}}^1$

素因数の和:1636

約数の個数: 64

約数和(自身を含む): 54328320

約数和(自身を除く): 33653960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1571, 1645, 1880, 2632, 3142, 3290, 6284, 6580, 7855, 10997, 12568, 13160, 15710, 21994, 31420, 43988, 54985, 62840, 73837, 87976, 109970, 147674, 219940, 295348, 369185, 439880, 516859, 590696, 738370, 1033718, 1476740, 2067436, 2584295, 2953480, 4134872, 5168590, 10337180, 20674360]

約数ペア:

[(1, 20674360), (2, 10337180), (4, 5168590), (5, 4134872), (7, 2953480), (8, 2584295), (10, 2067436), (14, 1476740), (20, 1033718), (28, 738370), (35, 590696), (40, 516859), (47, 439880), (56, 369185), (70, 295348), (94, 219940), (140, 147674), (188, 109970), (235, 87976), (280, 73837), (329, 62840), (376, 54985), (470, 43988), (658, 31420), (940, 21994), (1316, 15710), (1571, 13160), (1645, 12568), (1880, 10997), (2632, 7855), (3142, 6580), (3290, 6284)]