20171918416

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{193}}^1\times {\mathrm{38653}}^1$

素因数の和:38880

約数の個数: 60

約数和(自身を含む): 42541123548

約数和(自身を除く): 22369205132

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 193, 208, 338, 386, 676, 772, 1352, 1544, 2509, 2704, 3088, 5018, 10036, 20072, 32617, 38653, 40144, 65234, 77306, 130468, 154612, 260936, 309224, 502489, 521872, 618448, 1004978, 2009956, 4019912, 6532357, 7460029, 8039824, 13064714, 14920058, 26129428, 29840116, 52258856, 59680232, 96980377, 104517712, 119360464, 193960754, 387921508, 775843016, 1260744901, 1551686032, 2521489802, 5042979604, 10085959208, 20171918416]

約数ペア:

[(1, 20171918416), (2, 10085959208), (4, 5042979604), (8, 2521489802), (13, 1551686032), (16, 1260744901), (26, 775843016), (52, 387921508), (104, 193960754), (169, 119360464), (193, 104517712), (208, 96980377), (338, 59680232), (386, 52258856), (676, 29840116), (772, 26129428), (1352, 14920058), (1544, 13064714), (2509, 8039824), (2704, 7460029), (3088, 6532357), (5018, 4019912), (10036, 2009956), (20072, 1004978), (32617, 618448), (38653, 521872), (40144, 502489), (65234, 309224), (77306, 260936), (130468, 154612)]