78570520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40087}}^1$

素因数の和:40112

約数の個数: 48

約数和(自身を含む): 205651440

約数和(自身を除く): 127080920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40087, 80174, 160348, 200435, 280609, 320696, 400870, 561218, 801740, 1122436, 1403045, 1603480, 1964263, 2244872, 2806090, 3928526, 5612180, 7857052, 9821315, 11224360, 15714104, 19642630, 39285260, 78570520]

約数ペア:

[(1, 78570520), (2, 39285260), (4, 19642630), (5, 15714104), (7, 11224360), (8, 9821315), (10, 7857052), (14, 5612180), (20, 3928526), (28, 2806090), (35, 2244872), (40, 1964263), (49, 1603480), (56, 1403045), (70, 1122436), (98, 801740), (140, 561218), (196, 400870), (245, 320696), (280, 280609), (392, 200435), (490, 160348), (980, 80174), (1960, 40087)]