18628432

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 37575720

約数和(自身を除く): 18947288

約数列:

[1, 2, 4, 8, 16, 41, 73, 82, 146, 164, 292, 328, 389, 584, 656, 778, 1168, 1556, 2993, 3112, 5986, 6224, 11972, 15949, 23944, 28397, 31898, 47888, 56794, 63796, 113588, 127592, 227176, 255184, 454352, 1164277, 2328554, 4657108, 9314216, 18628432]

約数ペア:

[(1, 18628432), (2, 9314216), (4, 4657108), (8, 2328554), (16, 1164277), (41, 454352), (73, 255184), (82, 227176), (146, 127592), (164, 113588), (292, 63796), (328, 56794), (389, 47888), (584, 31898), (656, 28397), (778, 23944), (1168, 15949), (1556, 11972), (2993, 6224), (3112, 5986)]