18871140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{857}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 53044992

約数和(自身を除く): 34173852

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 367, 734, 857, 1101, 1468, 1714, 1835, 2202, 2571, 3428, 3670, 4285, 4404, 5142, 5505, 7340, 8570, 10284, 11010, 12855, 17140, 22020, 25710, 51420, 314519, 629038, 943557, 1258076, 1572595, 1887114, 3145190, 3774228, 4717785, 6290380, 9435570, 18871140]

約数ペア:

[(1, 18871140), (2, 9435570), (3, 6290380), (4, 4717785), (5, 3774228), (6, 3145190), (10, 1887114), (12, 1572595), (15, 1258076), (20, 943557), (30, 629038), (60, 314519), (367, 51420), (734, 25710), (857, 22020), (1101, 17140), (1468, 12855), (1714, 11010), (1835, 10284), (2202, 8570), (2571, 7340), (3428, 5505), (3670, 5142), (4285, 4404)]