20992810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18405590

約数列:

[1, 2, 5, 10, 29, 58, 145, 191, 290, 379, 382, 758, 955, 1895, 1910, 3790, 5539, 10991, 11078, 21982, 27695, 54955, 55390, 72389, 109910, 144778, 361945, 723890, 2099281, 4198562, 10496405, 20992810]

約数ペア:

[(1, 20992810), (2, 10496405), (5, 4198562), (10, 2099281), (29, 723890), (58, 361945), (145, 144778), (191, 109910), (290, 72389), (379, 55390), (382, 54955), (758, 27695), (955, 21982), (1895, 11078), (1910, 10991), (3790, 5539)]