20057705

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 6899095

約数列:

[1, 5, 17, 29, 79, 85, 103, 145, 395, 493, 515, 1343, 1751, 2291, 2465, 2987, 6715, 8137, 8755, 11455, 14935, 38947, 40685, 50779, 138329, 194735, 235973, 253895, 691645, 1179865, 4011541, 20057705]

約数ペア:

[(1, 20057705), (5, 4011541), (17, 1179865), (29, 691645), (79, 253895), (85, 235973), (103, 194735), (145, 138329), (395, 50779), (493, 40685), (515, 38947), (1343, 14935), (1751, 11455), (2291, 8755), (2465, 8137), (2987, 6715)]