80628878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1384

約数の個数: 32

約数和(自身を含む): 137168640

約数和(自身を除く): 56539762

約数列:

[1, 2, 11, 22, 41, 71, 82, 142, 451, 781, 902, 1259, 1562, 2518, 2911, 5822, 13849, 27698, 32021, 51619, 64042, 89389, 103238, 178778, 567809, 983279, 1135618, 1966558, 3664949, 7329898, 40314439, 80628878]

約数ペア:

[(1, 80628878), (2, 40314439), (11, 7329898), (22, 3664949), (41, 1966558), (71, 1135618), (82, 983279), (142, 567809), (451, 178778), (781, 103238), (902, 89389), (1259, 64042), (1562, 51619), (2518, 32021), (2911, 27698), (5822, 13849)]