78478040

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8209}}^1$

素因数の和:8459

約数の個数: 32

約数和(自身を含む): 177336000

約数和(自身を除く): 98857960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 8209, 9560, 16418, 32836, 41045, 65672, 82090, 164180, 328360, 1961951, 3923902, 7847804, 9809755, 15695608, 19619510, 39239020, 78478040]

約数ペア:

[(1, 78478040), (2, 39239020), (4, 19619510), (5, 15695608), (8, 9809755), (10, 7847804), (20, 3923902), (40, 1961951), (239, 328360), (478, 164180), (956, 82090), (1195, 65672), (1912, 41045), (2390, 32836), (4780, 16418), (8209, 9560)]