8668840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6991}}^1$

素因数の和:7033

約数の個数: 32

約数和(自身を含む): 20136960

約数和(自身を除く): 11468120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 6991, 13982, 27964, 34955, 55928, 69910, 139820, 216721, 279640, 433442, 866884, 1083605, 1733768, 2167210, 4334420, 8668840]

約数ペア:

[(1, 8668840), (2, 4334420), (4, 2167210), (5, 1733768), (8, 1083605), (10, 866884), (20, 433442), (31, 279640), (40, 216721), (62, 139820), (124, 69910), (155, 55928), (248, 34955), (310, 27964), (620, 13982), (1240, 6991)]