20258745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4517}}^1$

素因数の和:4561

約数の個数: 32

約数和(自身を含む): 36433152

約数和(自身を除く): 16174407

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4517, 13551, 22585, 58721, 67755, 103891, 176163, 293605, 311673, 519455, 880815, 1350583, 1558365, 4051749, 6752915, 20258745]

約数ペア:

[(1, 20258745), (3, 6752915), (5, 4051749), (13, 1558365), (15, 1350583), (23, 880815), (39, 519455), (65, 311673), (69, 293605), (115, 176163), (195, 103891), (299, 67755), (345, 58721), (897, 22585), (1495, 13551), (4485, 4517)]