161878360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{82591}}^1$

素因数の和:82616

約数の個数: 48

約数和(自身を含む): 423696960

約数和(自身を除く): 261818600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 82591, 165182, 330364, 412955, 578137, 660728, 825910, 1156274, 1651820, 2312548, 2890685, 3303640, 4046959, 4625096, 5781370, 8093918, 11562740, 16187836, 20234795, 23125480, 32375672, 40469590, 80939180, 161878360]

約数ペア:

[(1, 161878360), (2, 80939180), (4, 40469590), (5, 32375672), (7, 23125480), (8, 20234795), (10, 16187836), (14, 11562740), (20, 8093918), (28, 5781370), (35, 4625096), (40, 4046959), (49, 3303640), (56, 2890685), (70, 2312548), (98, 1651820), (140, 1156274), (196, 825910), (245, 660728), (280, 578137), (392, 412955), (490, 330364), (980, 165182), (1960, 82591)]