81412308

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 211507296

約数和(自身を除く): 130094988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 131, 183, 244, 262, 283, 366, 393, 524, 549, 566, 732, 786, 849, 1098, 1132, 1179, 1572, 1698, 2196, 2358, 2547, 3396, 4716, 5094, 7991, 10188, 15982, 17263, 23973, 31964, 34526, 37073, 47946, 51789, 69052, 71919, 74146, 95892, 103578, 111219, 143838, 148292, 155367, 207156, 222438, 287676, 310734, 333657, 444876, 621468, 667314, 1334628, 2261453, 4522906, 6784359, 9045812, 13568718, 20353077, 27137436, 40706154, 81412308]

約数ペア:

[(1, 81412308), (2, 40706154), (3, 27137436), (4, 20353077), (6, 13568718), (9, 9045812), (12, 6784359), (18, 4522906), (36, 2261453), (61, 1334628), (122, 667314), (131, 621468), (183, 444876), (244, 333657), (262, 310734), (283, 287676), (366, 222438), (393, 207156), (524, 155367), (549, 148292), (566, 143838), (732, 111219), (786, 103578), (849, 95892), (1098, 74146), (1132, 71919), (1179, 69052), (1572, 51789), (1698, 47946), (2196, 37073), (2358, 34526), (2547, 31964), (3396, 23973), (4716, 17263), (5094, 15982), (7991, 10188)]