20198015

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1$

素因数の和:1522

約数の個数: 16

約数和(自身を含む): 25176960

約数和(自身を除く): 4978945

約数列:

[1, 5, 47, 61, 235, 305, 1409, 2867, 7045, 14335, 66223, 85949, 331115, 429745, 4039603, 20198015]

約数ペア:

[(1, 20198015), (5, 4039603), (47, 429745), (61, 331115), (235, 85949), (305, 66223), (1409, 14335), (2867, 7045)]