64500520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1033}}^1$

素因数の和:1274

約数の個数: 64

約数和(自身を含む): 166763520

約数和(自身を除く): 102263000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 446, 892, 1033, 1115, 1561, 1784, 2066, 2230, 3122, 4132, 4460, 5165, 6244, 7231, 7805, 8264, 8920, 10330, 12488, 14462, 15610, 20660, 28924, 31220, 36155, 41320, 57848, 62440, 72310, 144620, 230359, 289240, 460718, 921436, 1151795, 1612513, 1842872, 2303590, 3225026, 4607180, 6450052, 8062565, 9214360, 12900104, 16125130, 32250260, 64500520]

約数ペア:

[(1, 64500520), (2, 32250260), (4, 16125130), (5, 12900104), (7, 9214360), (8, 8062565), (10, 6450052), (14, 4607180), (20, 3225026), (28, 2303590), (35, 1842872), (40, 1612513), (56, 1151795), (70, 921436), (140, 460718), (223, 289240), (280, 230359), (446, 144620), (892, 72310), (1033, 62440), (1115, 57848), (1561, 41320), (1784, 36155), (2066, 31220), (2230, 28924), (3122, 20660), (4132, 15610), (4460, 14462), (5165, 12488), (6244, 10330), (7231, 8920), (7805, 8264)]