639270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{7103}}^1$

素因数の和:7116

約数の個数: 24

約数和(自身を含む): 1662336

約数和(自身を除く): 1023066

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 7103, 14206, 21309, 35515, 42618, 63927, 71030, 106545, 127854, 213090, 319635, 639270]

約数ペア:

[(1, 639270), (2, 319635), (3, 213090), (5, 127854), (6, 106545), (9, 71030), (10, 63927), (15, 42618), (18, 35515), (30, 21309), (45, 14206), (90, 7103)]