81886818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 181762560

約数和(自身を除く): 99875742

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 79, 97, 137, 158, 194, 237, 274, 291, 411, 474, 582, 822, 1027, 1261, 1781, 2054, 2522, 3081, 3562, 3783, 5343, 6162, 7566, 7663, 10686, 10823, 13289, 15326, 21646, 22989, 26578, 32469, 39867, 45978, 64938, 79734, 99619, 140699, 172757, 199238, 281398, 298857, 345514, 422097, 518271, 597714, 844194, 1036542, 1049831, 2099662, 3149493, 6298986, 13647803, 27295606, 40943409, 81886818]

約数ペア:

[(1, 81886818), (2, 40943409), (3, 27295606), (6, 13647803), (13, 6298986), (26, 3149493), (39, 2099662), (78, 1049831), (79, 1036542), (97, 844194), (137, 597714), (158, 518271), (194, 422097), (237, 345514), (274, 298857), (291, 281398), (411, 199238), (474, 172757), (582, 140699), (822, 99619), (1027, 79734), (1261, 64938), (1781, 45978), (2054, 39867), (2522, 32469), (3081, 26578), (3562, 22989), (3783, 21646), (5343, 15326), (6162, 13289), (7566, 10823), (7663, 10686)]