78990505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{281}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 109641600

約数和(自身を除く): 30651095

約数列:

[1, 5, 11, 19, 55, 95, 209, 269, 281, 1045, 1345, 1405, 2959, 3091, 5111, 5339, 14795, 15455, 25555, 26695, 56221, 58729, 75589, 281105, 293645, 377945, 831479, 1436191, 4157395, 7180955, 15798101, 78990505]

約数ペア:

[(1, 78990505), (5, 15798101), (11, 7180955), (19, 4157395), (55, 1436191), (95, 831479), (209, 377945), (269, 293645), (281, 281105), (1045, 75589), (1345, 58729), (1405, 56221), (2959, 26695), (3091, 25555), (5111, 15455), (5339, 14795)]