208545815

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 268738560

約数和(自身を除く): 60192745

約数列:

[1, 5, 29, 47, 71, 145, 235, 355, 431, 1363, 2059, 2155, 3337, 6815, 10295, 12499, 16685, 20257, 30601, 62495, 96773, 101285, 153005, 483865, 587453, 887429, 1438247, 2937265, 4437145, 7191235, 41709163, 208545815]

約数ペア:

[(1, 208545815), (5, 41709163), (29, 7191235), (47, 4437145), (71, 2937265), (145, 1438247), (235, 887429), (355, 587453), (431, 483865), (1363, 153005), (2059, 101285), (2155, 96773), (3337, 62495), (6815, 30601), (10295, 20257), (12499, 16685)]