205121345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4703}}^1$

素因数の和:4793

約数の個数: 32

約数和(自身を含む): 293981184

約数和(自身を除く): 88859839

約数列:

[1, 5, 11, 13, 55, 61, 65, 143, 305, 671, 715, 793, 3355, 3965, 4703, 8723, 23515, 43615, 51733, 61139, 258665, 286883, 305695, 672529, 1434415, 3155713, 3362645, 3729479, 15778565, 18647395, 41024269, 205121345]

約数ペア:

[(1, 205121345), (5, 41024269), (11, 18647395), (13, 15778565), (55, 3729479), (61, 3362645), (65, 3155713), (143, 1434415), (305, 672529), (671, 305695), (715, 286883), (793, 258665), (3355, 61139), (3965, 51733), (4703, 43615), (8723, 23515)]