718420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2113}}^1$

素因数の和:2139

約数の個数: 24

約数和(自身を含む): 1598184

約数和(自身を除く): 879764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2113, 4226, 8452, 10565, 21130, 35921, 42260, 71842, 143684, 179605, 359210, 718420]

約数ペア:

[(1, 718420), (2, 359210), (4, 179605), (5, 143684), (10, 71842), (17, 42260), (20, 35921), (34, 21130), (68, 10565), (85, 8452), (170, 4226), (340, 2113)]