18695170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4639}}^1$

素因数の和:4690

約数の個数: 32

約数和(自身を含む): 37416960

約数和(自身を除く): 18721790

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4639, 9278, 23195, 46390, 60307, 120614, 143809, 287618, 301535, 603070, 719045, 1438090, 1869517, 3739034, 9347585, 18695170]

約数ペア:

[(1, 18695170), (2, 9347585), (5, 3739034), (10, 1869517), (13, 1438090), (26, 719045), (31, 603070), (62, 301535), (65, 287618), (130, 143809), (155, 120614), (310, 60307), (403, 46390), (806, 23195), (2015, 9278), (4030, 4639)]