81711656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 176677200

約数和(自身を除く): 94965544

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 113, 136, 221, 226, 409, 442, 452, 818, 884, 904, 1469, 1636, 1768, 1921, 2938, 3272, 3842, 5317, 5876, 6953, 7684, 10634, 11752, 13906, 15368, 21268, 24973, 27812, 42536, 46217, 49946, 55624, 90389, 92434, 99892, 180778, 184868, 199784, 361556, 369736, 600821, 723112, 785689, 1201642, 1571378, 2403284, 3142756, 4806568, 6285512, 10213957, 20427914, 40855828, 81711656]

約数ペア:

[(1, 81711656), (2, 40855828), (4, 20427914), (8, 10213957), (13, 6285512), (17, 4806568), (26, 3142756), (34, 2403284), (52, 1571378), (68, 1201642), (104, 785689), (113, 723112), (136, 600821), (221, 369736), (226, 361556), (409, 199784), (442, 184868), (452, 180778), (818, 99892), (884, 92434), (904, 90389), (1469, 55624), (1636, 49946), (1768, 46217), (1921, 42536), (2938, 27812), (3272, 24973), (3842, 21268), (5317, 15368), (5876, 13906), (6953, 11752), (7684, 10634)]