81666928

素因数分解:

$2^4\times 7^3\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:699

約数の個数: 80

約数和(自身を含む): 192844800

約数和(自身を除く): 111177872

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 343, 368, 392, 644, 647, 686, 784, 1127, 1288, 1294, 1372, 2254, 2576, 2588, 2744, 4508, 4529, 5176, 5488, 7889, 9016, 9058, 10352, 14881, 15778, 18032, 18116, 29762, 31556, 31703, 36232, 59524, 63112, 63406, 72464, 104167, 119048, 126224, 126812, 208334, 221921, 238096, 253624, 416668, 443842, 507248, 729169, 833336, 887684, 1458338, 1666672, 1775368, 2916676, 3550736, 5104183, 5833352, 10208366, 11666704, 20416732, 40833464, 81666928]

約数ペア:

[(1, 81666928), (2, 40833464), (4, 20416732), (7, 11666704), (8, 10208366), (14, 5833352), (16, 5104183), (23, 3550736), (28, 2916676), (46, 1775368), (49, 1666672), (56, 1458338), (92, 887684), (98, 833336), (112, 729169), (161, 507248), (184, 443842), (196, 416668), (322, 253624), (343, 238096), (368, 221921), (392, 208334), (644, 126812), (647, 126224), (686, 119048), (784, 104167), (1127, 72464), (1288, 63406), (1294, 63112), (1372, 59524), (2254, 36232), (2576, 31703), (2588, 31556), (2744, 29762), (4508, 18116), (4529, 18032), (5176, 15778), (5488, 14881), (7889, 10352), (9016, 9058)]