31352840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5639}}^1$

素因数の和:5789

約数の個数: 32

約数和(自身を含む): 71064000

約数和(自身を除く): 39711160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 5639, 11278, 22556, 28195, 45112, 56390, 112780, 225560, 783821, 1567642, 3135284, 3919105, 6270568, 7838210, 15676420, 31352840]

約数ペア:

[(1, 31352840), (2, 15676420), (4, 7838210), (5, 6270568), (8, 3919105), (10, 3135284), (20, 1567642), (40, 783821), (139, 225560), (278, 112780), (556, 56390), (695, 45112), (1112, 28195), (1390, 22556), (2780, 11278), (5560, 5639)]