20439115

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 25310880

約数和(自身を除く): 4871765

約数列:

[1, 5, 41, 179, 205, 557, 895, 2785, 7339, 22837, 36695, 99703, 114185, 498515, 4087823, 20439115]

約数ペア:

[(1, 20439115), (5, 4087823), (41, 498515), (179, 114185), (205, 99703), (557, 36695), (895, 22837), (2785, 7339)]