129285320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{45523}}^1$

素因数の和:45605

約数の個数: 32

約数和(自身を含む): 294995520

約数和(自身を除く): 165710200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 45523, 91046, 182092, 227615, 364184, 455230, 910460, 1820920, 3232133, 6464266, 12928532, 16160665, 25857064, 32321330, 64642660, 129285320]

約数ペア:

[(1, 129285320), (2, 64642660), (4, 32321330), (5, 25857064), (8, 16160665), (10, 12928532), (20, 6464266), (40, 3232133), (71, 1820920), (142, 910460), (284, 455230), (355, 364184), (568, 227615), (710, 182092), (1420, 91046), (2840, 45523)]