18979592

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 36720000

約数和(自身を除く): 17740408

約数列:

[1, 2, 4, 8, 59, 79, 118, 158, 236, 316, 472, 509, 632, 1018, 2036, 4072, 4661, 9322, 18644, 30031, 37288, 40211, 60062, 80422, 120124, 160844, 240248, 321688, 2372449, 4744898, 9489796, 18979592]

約数ペア:

[(1, 18979592), (2, 9489796), (4, 4744898), (8, 2372449), (59, 321688), (79, 240248), (118, 160844), (158, 120124), (236, 80422), (316, 60062), (472, 40211), (509, 37288), (632, 30031), (1018, 18644), (2036, 9322), (4072, 4661)]