20295015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 35212800

約数和(自身を除く): 14917785

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 199, 523, 597, 995, 1569, 2587, 2615, 2985, 6799, 7761, 7845, 12935, 20397, 33995, 38805, 101985, 104077, 312231, 520385, 1353001, 1561155, 4059003, 6765005, 20295015]

約数ペア:

[(1, 20295015), (3, 6765005), (5, 4059003), (13, 1561155), (15, 1353001), (39, 520385), (65, 312231), (195, 104077), (199, 101985), (523, 38805), (597, 33995), (995, 20397), (1569, 12935), (2587, 7845), (2615, 7761), (2985, 6799)]