638014736

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{13841}}^1$

素因数の和:13959

約数の個数: 40

約数和(自身を含む): 1283873184

約数和(自身を除く): 645858448

約数列:

[1, 2, 4, 8, 16, 43, 67, 86, 134, 172, 268, 344, 536, 688, 1072, 2881, 5762, 11524, 13841, 23048, 27682, 46096, 55364, 110728, 221456, 595163, 927347, 1190326, 1854694, 2380652, 3709388, 4761304, 7418776, 9522608, 14837552, 39875921, 79751842, 159503684, 319007368, 638014736]

約数ペア:

[(1, 638014736), (2, 319007368), (4, 159503684), (8, 79751842), (16, 39875921), (43, 14837552), (67, 9522608), (86, 7418776), (134, 4761304), (172, 3709388), (268, 2380652), (344, 1854694), (536, 1190326), (688, 927347), (1072, 595163), (2881, 221456), (5762, 110728), (11524, 55364), (13841, 46096), (23048, 27682)]