20717260

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 44946720

約数和(自身を除く): 24229460

約数列:

[1, 2, 4, 5, 10, 20, 59, 97, 118, 181, 194, 236, 295, 362, 388, 485, 590, 724, 905, 970, 1180, 1810, 1940, 3620, 5723, 10679, 11446, 17557, 21358, 22892, 28615, 35114, 42716, 53395, 57230, 70228, 87785, 106790, 114460, 175570, 213580, 351140, 1035863, 2071726, 4143452, 5179315, 10358630, 20717260]

約数ペア:

[(1, 20717260), (2, 10358630), (4, 5179315), (5, 4143452), (10, 2071726), (20, 1035863), (59, 351140), (97, 213580), (118, 175570), (181, 114460), (194, 106790), (236, 87785), (295, 70228), (362, 57230), (388, 53395), (485, 42716), (590, 35114), (724, 28615), (905, 22892), (970, 21358), (1180, 17557), (1810, 11446), (1940, 10679), (3620, 5723)]