31128786

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^2\times {\mathrm{379}}^1$

素因数の和:422

約数の個数: 72

約数和(自身を含む): 75937680

約数和(自身を除く): 44808894

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 169, 234, 243, 338, 351, 379, 486, 507, 702, 758, 1014, 1053, 1137, 1521, 2106, 2274, 3042, 3159, 3411, 4563, 4927, 6318, 6822, 9126, 9854, 10233, 13689, 14781, 20466, 27378, 29562, 30699, 41067, 44343, 61398, 64051, 82134, 88686, 92097, 128102, 133029, 184194, 192153, 266058, 384306, 399087, 576459, 798174, 1152918, 1197261, 1729377, 2394522, 3458754, 5188131, 10376262, 15564393, 31128786]

約数ペア:

[(1, 31128786), (2, 15564393), (3, 10376262), (6, 5188131), (9, 3458754), (13, 2394522), (18, 1729377), (26, 1197261), (27, 1152918), (39, 798174), (54, 576459), (78, 399087), (81, 384306), (117, 266058), (162, 192153), (169, 184194), (234, 133029), (243, 128102), (338, 92097), (351, 88686), (379, 82134), (486, 64051), (507, 61398), (702, 44343), (758, 41067), (1014, 30699), (1053, 29562), (1137, 27378), (1521, 20466), (2106, 14781), (2274, 13689), (3042, 10233), (3159, 9854), (3411, 9126), (4563, 6822), (4927, 6318)]