65604520

素因数分解:

$2^3\times 5^1\times {\mathrm{953}}^1\times {\mathrm{1721}}^1$

素因数の和:2685

約数の個数: 32

約数和(自身を含む): 147850920

約数和(自身を除く): 82246400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 953, 1721, 1906, 3442, 3812, 4765, 6884, 7624, 8605, 9530, 13768, 17210, 19060, 34420, 38120, 68840, 1640113, 3280226, 6560452, 8200565, 13120904, 16401130, 32802260, 65604520]

約数ペア:

[(1, 65604520), (2, 32802260), (4, 16401130), (5, 13120904), (8, 8200565), (10, 6560452), (20, 3280226), (40, 1640113), (953, 68840), (1721, 38120), (1906, 34420), (3442, 19060), (3812, 17210), (4765, 13768), (6884, 9530), (7624, 8605)]