684440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 1568160

約数和(自身を除く): 883720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 241, 284, 355, 482, 568, 710, 964, 1205, 1420, 1928, 2410, 2840, 4820, 9640, 17111, 34222, 68444, 85555, 136888, 171110, 342220, 684440]

約数ペア:

[(1, 684440), (2, 342220), (4, 171110), (5, 136888), (8, 85555), (10, 68444), (20, 34222), (40, 17111), (71, 9640), (142, 4820), (241, 2840), (284, 2410), (355, 1928), (482, 1420), (568, 1205), (710, 964)]