20959160

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28029640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 83, 107, 118, 166, 214, 236, 295, 332, 415, 428, 472, 535, 590, 664, 830, 856, 1070, 1180, 1660, 2140, 2360, 3320, 4280, 4897, 6313, 8881, 9794, 12626, 17762, 19588, 24485, 25252, 31565, 35524, 39176, 44405, 48970, 50504, 63130, 71048, 88810, 97940, 126260, 177620, 195880, 252520, 355240, 523979, 1047958, 2095916, 2619895, 4191832, 5239790, 10479580, 20959160]

約数ペア:

[(1, 20959160), (2, 10479580), (4, 5239790), (5, 4191832), (8, 2619895), (10, 2095916), (20, 1047958), (40, 523979), (59, 355240), (83, 252520), (107, 195880), (118, 177620), (166, 126260), (214, 97940), (236, 88810), (295, 71048), (332, 63130), (415, 50504), (428, 48970), (472, 44405), (535, 39176), (590, 35524), (664, 31565), (830, 25252), (856, 24485), (1070, 19588), (1180, 17762), (1660, 12626), (2140, 9794), (2360, 8881), (3320, 6313), (4280, 4897)]