20146960

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3547}}^1$

素因数の和:3631

約数の個数: 40

約数和(自身を含む): 47514816

約数和(自身を除く): 27367856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3547, 5680, 7094, 14188, 17735, 28376, 35470, 56752, 70940, 141880, 251837, 283760, 503674, 1007348, 1259185, 2014696, 2518370, 4029392, 5036740, 10073480, 20146960]

約数ペア:

[(1, 20146960), (2, 10073480), (4, 5036740), (5, 4029392), (8, 2518370), (10, 2014696), (16, 1259185), (20, 1007348), (40, 503674), (71, 283760), (80, 251837), (142, 141880), (284, 70940), (355, 56752), (568, 35470), (710, 28376), (1136, 17735), (1420, 14188), (2840, 7094), (3547, 5680)]