20859740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1789}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 48716640

約数和(自身を除く): 27856900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1789, 2332, 2915, 3578, 5830, 7156, 8945, 11660, 17890, 19679, 35780, 39358, 78716, 94817, 98395, 189634, 196790, 379268, 393580, 474085, 948170, 1042987, 1896340, 2085974, 4171948, 5214935, 10429870, 20859740]

約数ペア:

[(1, 20859740), (2, 10429870), (4, 5214935), (5, 4171948), (10, 2085974), (11, 1896340), (20, 1042987), (22, 948170), (44, 474085), (53, 393580), (55, 379268), (106, 196790), (110, 189634), (212, 98395), (220, 94817), (265, 78716), (530, 39358), (583, 35780), (1060, 19679), (1166, 17890), (1789, 11660), (2332, 8945), (2915, 7156), (3578, 5830)]