780898090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{11257}}^1$

素因数の和:12262

約数の個数: 32

約数和(自身を含む): 1608182784

約数和(自身を除く): 827284694

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 991, 1982, 4955, 6937, 9910, 11257, 13874, 22514, 34685, 56285, 69370, 78799, 112570, 157598, 393995, 787990, 11155687, 22311374, 55778435, 78089809, 111556870, 156179618, 390449045, 780898090]

約数ペア:

[(1, 780898090), (2, 390449045), (5, 156179618), (7, 111556870), (10, 78089809), (14, 55778435), (35, 22311374), (70, 11155687), (991, 787990), (1982, 393995), (4955, 157598), (6937, 112570), (9910, 78799), (11257, 69370), (13874, 56285), (22514, 34685)]