1269783880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{447107}}^1$

素因数の和:447189

約数の個数: 32

約数和(自身を含む): 2897259840

約数和(自身を除く): 1627475960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 447107, 894214, 1788428, 2235535, 3576856, 4471070, 8942140, 17884280, 31744597, 63489194, 126978388, 158722985, 253956776, 317445970, 634891940, 1269783880]

約数ペア:

[(1, 1269783880), (2, 634891940), (4, 317445970), (5, 253956776), (8, 158722985), (10, 126978388), (20, 63489194), (40, 31744597), (71, 17884280), (142, 8942140), (284, 4471070), (355, 3576856), (568, 2235535), (710, 1788428), (1420, 894214), (2840, 447107)]