1331195720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{773951}}^1$

素因数の和:774005

約数の個数: 32

約数和(自身を含む): 3064849920

約数和(自身を除く): 1733654200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 773951, 1547902, 3095804, 3869755, 6191608, 7739510, 15479020, 30958040, 33279893, 66559786, 133119572, 166399465, 266239144, 332798930, 665597860, 1331195720]

約数ペア:

[(1, 1331195720), (2, 665597860), (4, 332798930), (5, 266239144), (8, 166399465), (10, 133119572), (20, 66559786), (40, 33279893), (43, 30958040), (86, 15479020), (172, 7739510), (215, 6191608), (344, 3869755), (430, 3095804), (860, 1547902), (1720, 773951)]