78711080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2579}}^1$

素因数の和:2706

約数の個数: 64

約数和(自身を含む): 204336000

約数和(自身を除く): 125624920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1090, 1526, 2180, 2579, 3052, 3815, 4360, 5158, 6104, 7630, 10316, 12895, 15260, 18053, 20632, 25790, 30520, 36106, 51580, 72212, 90265, 103160, 144424, 180530, 281111, 361060, 562222, 722120, 1124444, 1405555, 1967777, 2248888, 2811110, 3935554, 5622220, 7871108, 9838885, 11244440, 15742216, 19677770, 39355540, 78711080]

約数ペア:

[(1, 78711080), (2, 39355540), (4, 19677770), (5, 15742216), (7, 11244440), (8, 9838885), (10, 7871108), (14, 5622220), (20, 3935554), (28, 2811110), (35, 2248888), (40, 1967777), (56, 1405555), (70, 1124444), (109, 722120), (140, 562222), (218, 361060), (280, 281111), (436, 180530), (545, 144424), (763, 103160), (872, 90265), (1090, 72212), (1526, 51580), (2180, 36106), (2579, 30520), (3052, 25790), (3815, 20632), (4360, 18053), (5158, 15260), (6104, 12895), (7630, 10316)]