25911640

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1163}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 58456080

約数和(自身を除く): 32544440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 1163, 2228, 2326, 2785, 4456, 4652, 5570, 5815, 9304, 11140, 11630, 22280, 23260, 46520, 647791, 1295582, 2591164, 3238955, 5182328, 6477910, 12955820, 25911640]

約数ペア:

[(1, 25911640), (2, 12955820), (4, 6477910), (5, 5182328), (8, 3238955), (10, 2591164), (20, 1295582), (40, 647791), (557, 46520), (1114, 23260), (1163, 22280), (2228, 11630), (2326, 11140), (2785, 9304), (4456, 5815), (4652, 5570)]