31352240

素因数分解:

$2^4\times 5^1\times {\mathrm{391903}}^1$

素因数の和:391916

約数の個数: 20

約数和(自身を含む): 72894144

約数和(自身を除く): 41541904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 391903, 783806, 1567612, 1959515, 3135224, 3919030, 6270448, 7838060, 15676120, 31352240]

約数ペア:

[(1, 31352240), (2, 15676120), (4, 7838060), (5, 6270448), (8, 3919030), (10, 3135224), (16, 1959515), (20, 1567612), (40, 783806), (80, 391903)]