81043480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1201}}^1$

素因数の和:1460

約数の個数: 64

約数和(自身を含む): 209436480

約数和(自身を除く): 128393000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 241, 280, 482, 964, 1201, 1205, 1687, 1928, 2402, 2410, 3374, 4804, 4820, 6005, 6748, 8407, 8435, 9608, 9640, 12010, 13496, 16814, 16870, 24020, 33628, 33740, 42035, 48040, 67256, 67480, 84070, 168140, 289441, 336280, 578882, 1157764, 1447205, 2026087, 2315528, 2894410, 4052174, 5788820, 8104348, 10130435, 11577640, 16208696, 20260870, 40521740, 81043480]

約数ペア:

[(1, 81043480), (2, 40521740), (4, 20260870), (5, 16208696), (7, 11577640), (8, 10130435), (10, 8104348), (14, 5788820), (20, 4052174), (28, 2894410), (35, 2315528), (40, 2026087), (56, 1447205), (70, 1157764), (140, 578882), (241, 336280), (280, 289441), (482, 168140), (964, 84070), (1201, 67480), (1205, 67256), (1687, 48040), (1928, 42035), (2402, 33740), (2410, 33628), (3374, 24020), (4804, 16870), (4820, 16814), (6005, 13496), (6748, 12010), (8407, 9640), (8435, 9608)]