13256840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10691}}^1$

素因数の和:10733

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 17536120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10691, 21382, 42764, 53455, 85528, 106910, 213820, 331421, 427640, 662842, 1325684, 1657105, 2651368, 3314210, 6628420, 13256840]

約数ペア:

[(1, 13256840), (2, 6628420), (4, 3314210), (5, 2651368), (8, 1657105), (10, 1325684), (20, 662842), (31, 427640), (40, 331421), (62, 213820), (124, 106910), (155, 85528), (248, 53455), (310, 42764), (620, 21382), (1240, 10691)]