66670640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19381}}^1$

素因数の和:19437

約数の個数: 40

約数和(自身を含む): 158622288

約数和(自身を除く): 91951648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19381, 38762, 77524, 96905, 155048, 193810, 310096, 387620, 775240, 833383, 1550480, 1666766, 3333532, 4166915, 6667064, 8333830, 13334128, 16667660, 33335320, 66670640]

約数ペア:

[(1, 66670640), (2, 33335320), (4, 16667660), (5, 13334128), (8, 8333830), (10, 6667064), (16, 4166915), (20, 3333532), (40, 1666766), (43, 1550480), (80, 833383), (86, 775240), (172, 387620), (215, 310096), (344, 193810), (430, 155048), (688, 96905), (860, 77524), (1720, 38762), (3440, 19381)]