201568520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{117191}}^1$

素因数の和:117245

約数の個数: 32

約数和(自身を含む): 464080320

約数和(自身を除く): 262511800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 117191, 234382, 468764, 585955, 937528, 1171910, 2343820, 4687640, 5039213, 10078426, 20156852, 25196065, 40313704, 50392130, 100784260, 201568520]

約数ペア:

[(1, 201568520), (2, 100784260), (4, 50392130), (5, 40313704), (8, 25196065), (10, 20156852), (20, 10078426), (40, 5039213), (43, 4687640), (86, 2343820), (172, 1171910), (215, 937528), (344, 585955), (430, 468764), (860, 234382), (1720, 117191)]