20689035

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 13870965

約数列:

[1, 3, 5, 15, 29, 87, 145, 199, 239, 435, 597, 717, 995, 1195, 2985, 3585, 5771, 6931, 17313, 20793, 28855, 34655, 47561, 86565, 103965, 142683, 237805, 713415, 1379269, 4137807, 6896345, 20689035]

約数ペア:

[(1, 20689035), (3, 6896345), (5, 4137807), (15, 1379269), (29, 713415), (87, 237805), (145, 142683), (199, 103965), (239, 86565), (435, 47561), (597, 34655), (717, 28855), (995, 20793), (1195, 17313), (2985, 6931), (3585, 5771)]