20175640

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26998760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 83, 103, 118, 166, 206, 236, 295, 332, 412, 415, 472, 515, 590, 664, 824, 830, 1030, 1180, 1660, 2060, 2360, 3320, 4120, 4897, 6077, 8549, 9794, 12154, 17098, 19588, 24308, 24485, 30385, 34196, 39176, 42745, 48616, 48970, 60770, 68392, 85490, 97940, 121540, 170980, 195880, 243080, 341960, 504391, 1008782, 2017564, 2521955, 4035128, 5043910, 10087820, 20175640]

約数ペア:

[(1, 20175640), (2, 10087820), (4, 5043910), (5, 4035128), (8, 2521955), (10, 2017564), (20, 1008782), (40, 504391), (59, 341960), (83, 243080), (103, 195880), (118, 170980), (166, 121540), (206, 97940), (236, 85490), (295, 68392), (332, 60770), (412, 48970), (415, 48616), (472, 42745), (515, 39176), (590, 34196), (664, 30385), (824, 24485), (830, 24308), (1030, 19588), (1180, 17098), (1660, 12154), (2060, 9794), (2360, 8549), (3320, 6077), (4120, 4897)]