199904515

素因数分解:

$5^1\times {\mathrm{179}}^1\times {\mathrm{401}}^1\times {\mathrm{557}}^1$

素因数の和:1142

約数の個数: 16

約数和(自身を含む): 242261280

約数和(自身を除く): 42356765

約数列:

[1, 5, 179, 401, 557, 895, 2005, 2785, 71779, 99703, 223357, 358895, 498515, 1116785, 39980903, 199904515]

約数ペア:

[(1, 199904515), (5, 39980903), (179, 1116785), (401, 498515), (557, 358895), (895, 223357), (2005, 99703), (2785, 71779)]