20159320180

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4217431}}^1$

素因数の和:4217679

約数の個数: 24

約数和(自身を含む): 42511714560

約数和(自身を除く): 22352394380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 4217431, 8434862, 16869724, 21087155, 42174310, 84348620, 1007966009, 2015932018, 4031864036, 5039830045, 10079660090, 20159320180]

約数ペア:

[(1, 20159320180), (2, 10079660090), (4, 5039830045), (5, 4031864036), (10, 2015932018), (20, 1007966009), (239, 84348620), (478, 42174310), (956, 21087155), (1195, 16869724), (2390, 8434862), (4780, 4217431)]