81840408

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{569}}^1$

素因数の和:1052

約数の個数: 64

約数和(自身を含む): 221205600

約数和(自身を除く): 139365192

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 461, 569, 922, 1138, 1383, 1707, 1844, 2276, 2766, 3414, 3688, 4552, 5532, 5993, 6828, 7397, 11064, 11986, 13656, 14794, 17979, 22191, 23972, 29588, 35958, 44382, 47944, 59176, 71916, 88764, 143832, 177528, 262309, 524618, 786927, 1049236, 1573854, 2098472, 3147708, 3410017, 6295416, 6820034, 10230051, 13640068, 20460102, 27280136, 40920204, 81840408]

約数ペア:

[(1, 81840408), (2, 40920204), (3, 27280136), (4, 20460102), (6, 13640068), (8, 10230051), (12, 6820034), (13, 6295416), (24, 3410017), (26, 3147708), (39, 2098472), (52, 1573854), (78, 1049236), (104, 786927), (156, 524618), (312, 262309), (461, 177528), (569, 143832), (922, 88764), (1138, 71916), (1383, 59176), (1707, 47944), (1844, 44382), (2276, 35958), (2766, 29588), (3414, 23972), (3688, 22191), (4552, 17979), (5532, 14794), (5993, 13656), (6828, 11986), (7397, 11064)]