20456085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4561}}^1$

素因数の和:4605

約数の個数: 32

約数和(自身を含む): 36787968

約数和(自身を除く): 16331883

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4561, 13683, 22805, 59293, 68415, 104903, 177879, 296465, 314709, 524515, 889395, 1363739, 1573545, 4091217, 6818695, 20456085]

約数ペア:

[(1, 20456085), (3, 6818695), (5, 4091217), (13, 1573545), (15, 1363739), (23, 889395), (39, 524515), (65, 314709), (69, 296465), (115, 177879), (195, 104903), (299, 68415), (345, 59293), (897, 22805), (1495, 13683), (4485, 4561)]