81731736

素因数分解:

$2^3\times 3^2\times {\mathrm{103}}^2\times {\mathrm{107}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 225615780

約数和(自身を除く): 143884044

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 103, 107, 206, 214, 309, 321, 412, 428, 618, 642, 824, 856, 927, 963, 1236, 1284, 1854, 1926, 2472, 2568, 3708, 3852, 7416, 7704, 10609, 11021, 21218, 22042, 31827, 33063, 42436, 44084, 63654, 66126, 84872, 88168, 95481, 99189, 127308, 132252, 190962, 198378, 254616, 264504, 381924, 396756, 763848, 793512, 1135163, 2270326, 3405489, 4540652, 6810978, 9081304, 10216467, 13621956, 20432934, 27243912, 40865868, 81731736]

約数ペア:

[(1, 81731736), (2, 40865868), (3, 27243912), (4, 20432934), (6, 13621956), (8, 10216467), (9, 9081304), (12, 6810978), (18, 4540652), (24, 3405489), (36, 2270326), (72, 1135163), (103, 793512), (107, 763848), (206, 396756), (214, 381924), (309, 264504), (321, 254616), (412, 198378), (428, 190962), (618, 132252), (642, 127308), (824, 99189), (856, 95481), (927, 88168), (963, 84872), (1236, 66126), (1284, 63654), (1854, 44084), (1926, 42436), (2472, 33063), (2568, 31827), (3708, 22042), (3852, 21218), (7416, 11021), (7704, 10609)]