20495085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1723}}^1$

素因数の和:1805

約数の個数: 32

約数和(自身を含む): 35914368

約数和(自身を除く): 15419283

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1723, 2379, 3965, 5169, 8615, 11895, 22399, 25845, 67197, 105103, 111995, 315309, 335985, 525515, 1366339, 1576545, 4099017, 6831695, 20495085]

約数ペア:

[(1, 20495085), (3, 6831695), (5, 4099017), (13, 1576545), (15, 1366339), (39, 525515), (61, 335985), (65, 315309), (183, 111995), (195, 105103), (305, 67197), (793, 25845), (915, 22399), (1723, 11895), (2379, 8615), (3965, 5169)]