20163985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2617}}^1$

素因数の和:2712

約数の個数: 16

約数和(自身を含む): 25635456

約数和(自身を除く): 5471471

約数列:

[1, 5, 23, 67, 115, 335, 1541, 2617, 7705, 13085, 60191, 175339, 300955, 876695, 4032797, 20163985]

約数ペア:

[(1, 20163985), (5, 4032797), (23, 876695), (67, 300955), (115, 175339), (335, 60191), (1541, 13085), (2617, 7705)]