13004840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2339}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 29484000

約数和(自身を除く): 16479160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2339, 2780, 4678, 5560, 9356, 11695, 18712, 23390, 46780, 93560, 325121, 650242, 1300484, 1625605, 2600968, 3251210, 6502420, 13004840]

約数ペア:

[(1, 13004840), (2, 6502420), (4, 3251210), (5, 2600968), (8, 1625605), (10, 1300484), (20, 650242), (40, 325121), (139, 93560), (278, 46780), (556, 23390), (695, 18712), (1112, 11695), (1390, 9356), (2339, 5560), (2780, 4678)]