78288560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139801}}^1$

素因数の和:139821

約数の個数: 40

約数和(自身を含む): 208025376

約数和(自身を除く): 129736816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139801, 279602, 559204, 699005, 978607, 1118408, 1398010, 1957214, 2236816, 2796020, 3914428, 4893035, 5592040, 7828856, 9786070, 11184080, 15657712, 19572140, 39144280, 78288560]

約数ペア:

[(1, 78288560), (2, 39144280), (4, 19572140), (5, 15657712), (7, 11184080), (8, 9786070), (10, 7828856), (14, 5592040), (16, 4893035), (20, 3914428), (28, 2796020), (35, 2236816), (40, 1957214), (56, 1398010), (70, 1118408), (80, 978607), (112, 699005), (140, 559204), (280, 279602), (560, 139801)]