1027804520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{361903}}^1$

素因数の和:361985

約数の個数: 32

約数和(自身を含む): 2345137920

約数和(自身を除く): 1317333400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 361903, 723806, 1447612, 1809515, 2895224, 3619030, 7238060, 14476120, 25695113, 51390226, 102780452, 128475565, 205560904, 256951130, 513902260, 1027804520]

約数ペア:

[(1, 1027804520), (2, 513902260), (4, 256951130), (5, 205560904), (8, 128475565), (10, 102780452), (20, 51390226), (40, 25695113), (71, 14476120), (142, 7238060), (284, 3619030), (355, 2895224), (568, 1809515), (710, 1447612), (1420, 723806), (2840, 361903)]