13020620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21001}}^1$

素因数の和:21041

約数の個数: 24

約数和(自身を含む): 28226688

約数和(自身を除く): 15206068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21001, 42002, 84004, 105005, 210010, 420020, 651031, 1302062, 2604124, 3255155, 6510310, 13020620]

約数ペア:

[(1, 13020620), (2, 6510310), (4, 3255155), (5, 2604124), (10, 1302062), (20, 651031), (31, 420020), (62, 210010), (124, 105005), (155, 84004), (310, 42002), (620, 21001)]