3915280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 9207000

約数和(自身を除く): 5291720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 449, 545, 872, 898, 1090, 1744, 1796, 2180, 2245, 3592, 4360, 4490, 7184, 8720, 8980, 17960, 35920, 48941, 97882, 195764, 244705, 391528, 489410, 783056, 978820, 1957640, 3915280]

約数ペア:

[(1, 3915280), (2, 1957640), (4, 978820), (5, 783056), (8, 489410), (10, 391528), (16, 244705), (20, 195764), (40, 97882), (80, 48941), (109, 35920), (218, 17960), (436, 8980), (449, 8720), (545, 7184), (872, 4490), (898, 4360), (1090, 3592), (1744, 2245), (1796, 2180)]