20121947780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5987}}^1\times {\mathrm{15277}}^1$

素因数の和:21284

約数の個数: 48

約数和(自身を含む): 46108270656

約数和(自身を除く): 25986322876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 5987, 11974, 15277, 23948, 29935, 30554, 59870, 61108, 65857, 76385, 119740, 131714, 152770, 168047, 263428, 305540, 329285, 336094, 658570, 672188, 840235, 1317140, 1680470, 3360940, 91463399, 182926798, 365853596, 457316995, 914633990, 1006097389, 1829267980, 2012194778, 4024389556, 5030486945, 10060973890, 20121947780]

約数ペア:

[(1, 20121947780), (2, 10060973890), (4, 5030486945), (5, 4024389556), (10, 2012194778), (11, 1829267980), (20, 1006097389), (22, 914633990), (44, 457316995), (55, 365853596), (110, 182926798), (220, 91463399), (5987, 3360940), (11974, 1680470), (15277, 1317140), (23948, 840235), (29935, 672188), (30554, 658570), (59870, 336094), (61108, 329285), (65857, 305540), (76385, 263428), (119740, 168047), (131714, 152770)]