720166460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{213067}}^1$

素因数の和:213102

約数の個数: 36

約数和(自身を含む): 1637640648

約数和(自身を除く): 917474188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 213067, 426134, 852268, 1065335, 2130670, 2769871, 4261340, 5539742, 11079484, 13849355, 27698710, 36008323, 55397420, 72016646, 144033292, 180041615, 360083230, 720166460]

約数ペア:

[(1, 720166460), (2, 360083230), (4, 180041615), (5, 144033292), (10, 72016646), (13, 55397420), (20, 36008323), (26, 27698710), (52, 13849355), (65, 11079484), (130, 5539742), (169, 4261340), (260, 2769871), (338, 2130670), (676, 1065335), (845, 852268), (1690, 426134), (3380, 213067)]