71400280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{11087}}^1$

素因数の和:11128

約数の個数: 64

約数和(自身を含む): 191600640

約数和(自身を除く): 120200360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 11087, 22174, 44348, 55435, 77609, 88696, 110870, 155218, 221740, 255001, 310436, 388045, 443480, 510002, 620872, 776090, 1020004, 1275005, 1552180, 1785007, 2040008, 2550010, 3104360, 3570014, 5100020, 7140028, 8925035, 10200040, 14280056, 17850070, 35700140, 71400280]

約数ペア:

[(1, 71400280), (2, 35700140), (4, 17850070), (5, 14280056), (7, 10200040), (8, 8925035), (10, 7140028), (14, 5100020), (20, 3570014), (23, 3104360), (28, 2550010), (35, 2040008), (40, 1785007), (46, 1552180), (56, 1275005), (70, 1020004), (92, 776090), (115, 620872), (140, 510002), (161, 443480), (184, 388045), (230, 310436), (280, 255001), (322, 221740), (460, 155218), (644, 110870), (805, 88696), (920, 77609), (1288, 55435), (1610, 44348), (3220, 22174), (6440, 11087)]