20346680

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1877}}^1$

素因数の和:2159

約数の個数: 32

約数和(自身を含む): 45973440

約数和(自身を除く): 25626760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1877, 2168, 2710, 3754, 5420, 7508, 9385, 10840, 15016, 18770, 37540, 75080, 508667, 1017334, 2034668, 2543335, 4069336, 5086670, 10173340, 20346680]

約数ペア:

[(1, 20346680), (2, 10173340), (4, 5086670), (5, 4069336), (8, 2543335), (10, 2034668), (20, 1017334), (40, 508667), (271, 75080), (542, 37540), (1084, 18770), (1355, 15016), (1877, 10840), (2168, 9385), (2710, 7508), (3754, 5420)]