15682280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12647}}^1$

素因数の和:12689

約数の個数: 32

約数和(自身を含む): 36426240

約数和(自身を除く): 20743960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12647, 25294, 50588, 63235, 101176, 126470, 252940, 392057, 505880, 784114, 1568228, 1960285, 3136456, 3920570, 7841140, 15682280]

約数ペア:

[(1, 15682280), (2, 7841140), (4, 3920570), (5, 3136456), (8, 1960285), (10, 1568228), (20, 784114), (31, 505880), (40, 392057), (62, 252940), (124, 126470), (155, 101176), (248, 63235), (310, 50588), (620, 25294), (1240, 12647)]