20077990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{881}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 37721376

約数和(自身を除く): 17643386

約数列:

[1, 2, 5, 10, 43, 53, 86, 106, 215, 265, 430, 530, 881, 1762, 2279, 4405, 4558, 8810, 11395, 22790, 37883, 46693, 75766, 93386, 189415, 233465, 378830, 466930, 2007799, 4015598, 10038995, 20077990]

約数ペア:

[(1, 20077990), (2, 10038995), (5, 4015598), (10, 2007799), (43, 466930), (53, 378830), (86, 233465), (106, 189415), (215, 93386), (265, 75766), (430, 46693), (530, 37883), (881, 22790), (1762, 11395), (2279, 8810), (4405, 4558)]