61663720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{35851}}^1$

素因数の和:35905

約数の個数: 32

約数和(自身を含む): 141973920

約数和(自身を除く): 80310200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 35851, 71702, 143404, 179255, 286808, 358510, 717020, 1434040, 1541593, 3083186, 6166372, 7707965, 12332744, 15415930, 30831860, 61663720]

約数ペア:

[(1, 61663720), (2, 30831860), (4, 15415930), (5, 12332744), (8, 7707965), (10, 6166372), (20, 3083186), (40, 1541593), (43, 1434040), (86, 717020), (172, 358510), (215, 286808), (344, 179255), (430, 143404), (860, 71702), (1720, 35851)]