18248888

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 42897600

約数和(自身を除く): 24648712

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 56, 58, 68, 116, 119, 136, 203, 232, 238, 406, 476, 493, 661, 812, 952, 986, 1322, 1624, 1972, 2644, 3451, 3944, 4627, 5288, 6902, 9254, 11237, 13804, 18508, 19169, 22474, 27608, 37016, 38338, 44948, 76676, 78659, 89896, 134183, 153352, 157318, 268366, 314636, 325873, 536732, 629272, 651746, 1073464, 1303492, 2281111, 2606984, 4562222, 9124444, 18248888]

約数ペア:

[(1, 18248888), (2, 9124444), (4, 4562222), (7, 2606984), (8, 2281111), (14, 1303492), (17, 1073464), (28, 651746), (29, 629272), (34, 536732), (56, 325873), (58, 314636), (68, 268366), (116, 157318), (119, 153352), (136, 134183), (203, 89896), (232, 78659), (238, 76676), (406, 44948), (476, 38338), (493, 37016), (661, 27608), (812, 22474), (952, 19169), (986, 18508), (1322, 13804), (1624, 11237), (1972, 9254), (2644, 6902), (3451, 5288), (3944, 4627)]