25218116

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1997}}^1$

素因数の和:2060

約数の個数: 48

約数和(自身を含む): 56391552

約数和(自身を除く): 31173436

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 154, 164, 287, 308, 451, 574, 902, 1148, 1804, 1997, 3157, 3994, 6314, 7988, 12628, 13979, 21967, 27958, 43934, 55916, 81877, 87868, 153769, 163754, 307538, 327508, 573139, 615076, 900647, 1146278, 1801294, 2292556, 3602588, 6304529, 12609058, 25218116]

約数ペア:

[(1, 25218116), (2, 12609058), (4, 6304529), (7, 3602588), (11, 2292556), (14, 1801294), (22, 1146278), (28, 900647), (41, 615076), (44, 573139), (77, 327508), (82, 307538), (154, 163754), (164, 153769), (287, 87868), (308, 81877), (451, 55916), (574, 43934), (902, 27958), (1148, 21967), (1804, 13979), (1997, 12628), (3157, 7988), (3994, 6314)]