20543480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30211}}^1$

素因数の和:30239

約数の個数: 32

約数和(自身を含む): 48943440

約数和(自身を除く): 28399960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30211, 60422, 120844, 151055, 241688, 302110, 513587, 604220, 1027174, 1208440, 2054348, 2567935, 4108696, 5135870, 10271740, 20543480]

約数ペア:

[(1, 20543480), (2, 10271740), (4, 5135870), (5, 4108696), (8, 2567935), (10, 2054348), (17, 1208440), (20, 1027174), (34, 604220), (40, 513587), (68, 302110), (85, 241688), (136, 151055), (170, 120844), (340, 60422), (680, 30211)]