155538280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54767}}^1$

素因数の和:54849

約数の個数: 32

約数和(自身を含む): 354896640

約数和(自身を除く): 199358360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 54767, 109534, 219068, 273835, 438136, 547670, 1095340, 2190680, 3888457, 7776914, 15553828, 19442285, 31107656, 38884570, 77769140, 155538280]

約数ペア:

[(1, 155538280), (2, 77769140), (4, 38884570), (5, 31107656), (8, 19442285), (10, 15553828), (20, 7776914), (40, 3888457), (71, 2190680), (142, 1095340), (284, 547670), (355, 438136), (568, 273835), (710, 219068), (1420, 109534), (2840, 54767)]