129492520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{68879}}^1$

素因数の和:68937

約数の個数: 32

約数和(自身を含む): 297561600

約数和(自身を除く): 168069080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 68879, 137758, 275516, 344395, 551032, 688790, 1377580, 2755160, 3237313, 6474626, 12949252, 16186565, 25898504, 32373130, 64746260, 129492520]

約数ペア:

[(1, 129492520), (2, 64746260), (4, 32373130), (5, 25898504), (8, 16186565), (10, 12949252), (20, 6474626), (40, 3237313), (47, 2755160), (94, 1377580), (188, 688790), (235, 551032), (376, 344395), (470, 275516), (940, 137758), (1880, 68879)]