25761620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 57404928

約数和(自身を除く): 31643308

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1123, 1147, 2246, 2294, 4492, 4588, 5615, 5735, 11230, 11470, 22460, 22940, 34813, 41551, 69626, 83102, 139252, 166204, 174065, 207755, 348130, 415510, 696260, 831020, 1288081, 2576162, 5152324, 6440405, 12880810, 25761620]

約数ペア:

[(1, 25761620), (2, 12880810), (4, 6440405), (5, 5152324), (10, 2576162), (20, 1288081), (31, 831020), (37, 696260), (62, 415510), (74, 348130), (124, 207755), (148, 174065), (155, 166204), (185, 139252), (310, 83102), (370, 69626), (620, 41551), (740, 34813), (1123, 22940), (1147, 22460), (2246, 11470), (2294, 11230), (4492, 5735), (4588, 5615)]