179217820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{3659}}^1$

素因数の和:3778

約数の個数: 48

約数和(自身を含む): 393523200

約数和(自身を除く): 214305380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 3659, 4898, 7318, 9796, 12245, 14636, 18295, 24490, 36590, 48980, 73180, 113429, 226858, 289061, 453716, 567145, 578122, 1134290, 1156244, 1445305, 2268580, 2890610, 5781220, 8960891, 17921782, 35843564, 44804455, 89608910, 179217820]

約数ペア:

[(1, 179217820), (2, 89608910), (4, 44804455), (5, 35843564), (10, 17921782), (20, 8960891), (31, 5781220), (62, 2890610), (79, 2268580), (124, 1445305), (155, 1156244), (158, 1134290), (310, 578122), (316, 567145), (395, 453716), (620, 289061), (790, 226858), (1580, 113429), (2449, 73180), (3659, 48980), (4898, 36590), (7318, 24490), (9796, 18295), (12245, 14636)]