25206560

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 59879736

約数和(自身を除く): 34673176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 613, 1028, 1226, 1285, 2056, 2452, 2570, 3065, 4112, 4904, 5140, 6130, 8224, 9808, 10280, 12260, 19616, 20560, 24520, 41120, 49040, 98080, 157541, 315082, 630164, 787705, 1260328, 1575410, 2520656, 3150820, 5041312, 6301640, 12603280, 25206560]

約数ペア:

[(1, 25206560), (2, 12603280), (4, 6301640), (5, 5041312), (8, 3150820), (10, 2520656), (16, 1575410), (20, 1260328), (32, 787705), (40, 630164), (80, 315082), (160, 157541), (257, 98080), (514, 49040), (613, 41120), (1028, 24520), (1226, 20560), (1285, 19616), (2056, 12260), (2452, 10280), (2570, 9808), (3065, 8224), (4112, 6130), (4904, 5140)]