20171080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16267}}^1$

素因数の和:16309

約数の個数: 32

約数和(自身を含む): 46851840

約数和(自身を除く): 26680760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16267, 32534, 65068, 81335, 130136, 162670, 325340, 504277, 650680, 1008554, 2017108, 2521385, 4034216, 5042770, 10085540, 20171080]

約数ペア:

[(1, 20171080), (2, 10085540), (4, 5042770), (5, 4034216), (8, 2521385), (10, 2017108), (20, 1008554), (31, 650680), (40, 504277), (62, 325340), (124, 162670), (155, 130136), (248, 81335), (310, 65068), (620, 32534), (1240, 16267)]