20279025

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2311}}^1$

素因数の和:2343

約数の個数: 48

約数和(自身を含む): 40136320

約数和(自身を除く): 19857295

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2311, 2925, 6933, 8775, 11555, 20799, 30043, 34665, 57775, 62397, 90129, 103995, 150215, 173325, 270387, 311985, 450645, 519975, 751075, 811161, 1351935, 1559925, 2253225, 4055805, 6759675, 20279025]

約数ペア:

[(1, 20279025), (3, 6759675), (5, 4055805), (9, 2253225), (13, 1559925), (15, 1351935), (25, 811161), (27, 751075), (39, 519975), (45, 450645), (65, 311985), (75, 270387), (117, 173325), (135, 150215), (195, 103995), (225, 90129), (325, 62397), (351, 57775), (585, 34665), (675, 30043), (975, 20799), (1755, 11555), (2311, 8775), (2925, 6933)]