25967960

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1301}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 58590000

約数和(自身を除く): 32622040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1301, 1996, 2495, 2602, 3992, 4990, 5204, 6505, 9980, 10408, 13010, 19960, 26020, 52040, 649199, 1298398, 2596796, 3245995, 5193592, 6491990, 12983980, 25967960]

約数ペア:

[(1, 25967960), (2, 12983980), (4, 6491990), (5, 5193592), (8, 3245995), (10, 2596796), (20, 1298398), (40, 649199), (499, 52040), (998, 26020), (1301, 19960), (1996, 13010), (2495, 10408), (2602, 9980), (3992, 6505), (4990, 5204)]