28138990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8821}}^1$

素因数の和:8868

約数の個数: 32

約数和(自身を含む): 57166560

約数和(自身を除く): 29027570

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 8821, 17642, 44105, 88210, 97031, 194062, 255809, 485155, 511618, 970310, 1279045, 2558090, 2813899, 5627798, 14069495, 28138990]

約数ペア:

[(1, 28138990), (2, 14069495), (5, 5627798), (10, 2813899), (11, 2558090), (22, 1279045), (29, 970310), (55, 511618), (58, 485155), (110, 255809), (145, 194062), (290, 97031), (319, 88210), (638, 44105), (1595, 17642), (3190, 8821)]