72221630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17921}}^1$

素因数の和:17972

約数の個数: 32

約数和(自身を含む): 144523008

約数和(自身を除く): 72301378

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17921, 35842, 89605, 179210, 232973, 465946, 555551, 1111102, 1164865, 2329730, 2777755, 5555510, 7222163, 14444326, 36110815, 72221630]

約数ペア:

[(1, 72221630), (2, 36110815), (5, 14444326), (10, 7222163), (13, 5555510), (26, 2777755), (31, 2329730), (62, 1164865), (65, 1111102), (130, 555551), (155, 465946), (310, 232973), (403, 179210), (806, 89605), (2015, 35842), (4030, 17921)]