23430640

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2687}}^1$

素因数の和:2809

約数の個数: 40

約数和(自身を含む): 54996480

約数和(自身を除く): 31565840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2687, 4360, 5374, 8720, 10748, 13435, 21496, 26870, 42992, 53740, 107480, 214960, 292883, 585766, 1171532, 1464415, 2343064, 2928830, 4686128, 5857660, 11715320, 23430640]

約数ペア:

[(1, 23430640), (2, 11715320), (4, 5857660), (5, 4686128), (8, 2928830), (10, 2343064), (16, 1464415), (20, 1171532), (40, 585766), (80, 292883), (109, 214960), (218, 107480), (436, 53740), (545, 42992), (872, 26870), (1090, 21496), (1744, 13435), (2180, 10748), (2687, 8720), (4360, 5374)]