127442920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{289643}}^1$

素因数の和:289665

約数の個数: 32

約数和(自身を含む): 312815520

約数和(自身を除く): 185372600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 289643, 579286, 1158572, 1448215, 2317144, 2896430, 3186073, 5792860, 6372146, 11585720, 12744292, 15930365, 25488584, 31860730, 63721460, 127442920]

約数ペア:

[(1, 127442920), (2, 63721460), (4, 31860730), (5, 25488584), (8, 15930365), (10, 12744292), (11, 11585720), (20, 6372146), (22, 5792860), (40, 3186073), (44, 2896430), (55, 2317144), (88, 1448215), (110, 1158572), (220, 579286), (440, 289643)]