16209125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 32

約数和(自身を含む): 21565440

約数和(自身を除く): 5356315

約数列:

[1, 5, 25, 31, 47, 89, 125, 155, 235, 445, 775, 1175, 1457, 2225, 2759, 3875, 4183, 5875, 7285, 11125, 13795, 20915, 36425, 68975, 104575, 129673, 182125, 344875, 522875, 648365, 3241825, 16209125]

約数ペア:

[(1, 16209125), (5, 3241825), (25, 648365), (31, 522875), (47, 344875), (89, 182125), (125, 129673), (155, 104575), (235, 68975), (445, 36425), (775, 20915), (1175, 13795), (1457, 11125), (2225, 7285), (2759, 5875), (3875, 4183)]