25207120

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{647}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 58817664

約数和(自身を除く): 33610544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 647, 974, 1294, 1948, 2435, 2588, 3235, 3896, 4870, 5176, 6470, 7792, 9740, 10352, 12940, 19480, 25880, 38960, 51760, 315089, 630178, 1260356, 1575445, 2520712, 3150890, 5041424, 6301780, 12603560, 25207120]

約数ペア:

[(1, 25207120), (2, 12603560), (4, 6301780), (5, 5041424), (8, 3150890), (10, 2520712), (16, 1575445), (20, 1260356), (40, 630178), (80, 315089), (487, 51760), (647, 38960), (974, 25880), (1294, 19480), (1948, 12940), (2435, 10352), (2588, 9740), (3235, 7792), (3896, 6470), (4870, 5176)]