13021240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10501}}^1$

素因数の和:10543

約数の個数: 32

約数和(自身を含む): 30245760

約数和(自身を除く): 17224520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10501, 21002, 42004, 52505, 84008, 105010, 210020, 325531, 420040, 651062, 1302124, 1627655, 2604248, 3255310, 6510620, 13021240]

約数ペア:

[(1, 13021240), (2, 6510620), (4, 3255310), (5, 2604248), (8, 1627655), (10, 1302124), (20, 651062), (31, 420040), (40, 325531), (62, 210020), (124, 105010), (155, 84008), (248, 52505), (310, 42004), (620, 21002), (1240, 10501)]