15990265

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1453}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 20100096

約数和(自身を除く): 4109831

約数列:

[1, 5, 31, 71, 155, 355, 1453, 2201, 7265, 11005, 45043, 103163, 225215, 515815, 3198053, 15990265]

約数ペア:

[(1, 15990265), (5, 3198053), (31, 515815), (71, 225215), (155, 103163), (355, 45043), (1453, 11005), (2201, 7265)]