1557431440

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{130657}}^1$

素因数の和:130819

約数の個数: 40

約数和(自身を含む): 3645358200

約数和(自身を除く): 2087926760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 130657, 261314, 522628, 653285, 1045256, 1306570, 2090512, 2613140, 5226280, 10452560, 19467893, 38935786, 77871572, 97339465, 155743144, 194678930, 311486288, 389357860, 778715720, 1557431440]

約数ペア:

[(1, 1557431440), (2, 778715720), (4, 389357860), (5, 311486288), (8, 194678930), (10, 155743144), (16, 97339465), (20, 77871572), (40, 38935786), (80, 19467893), (149, 10452560), (298, 5226280), (596, 2613140), (745, 2090512), (1192, 1306570), (1490, 1045256), (2384, 653285), (2980, 522628), (5960, 261314), (11920, 130657)]