8986280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7247}}^1$

素因数の和:7289

約数の個数: 32

約数和(自身を含む): 20874240

約数和(自身を除く): 11887960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 7247, 14494, 28988, 36235, 57976, 72470, 144940, 224657, 289880, 449314, 898628, 1123285, 1797256, 2246570, 4493140, 8986280]

約数ペア:

[(1, 8986280), (2, 4493140), (4, 2246570), (5, 1797256), (8, 1123285), (10, 898628), (20, 449314), (31, 289880), (40, 224657), (62, 144940), (124, 72470), (155, 57976), (248, 36235), (310, 28988), (620, 14494), (1240, 7247)]