15766865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 21168000

約数和(自身を除く): 5401135

約数列:

[1, 5, 19, 29, 59, 95, 97, 145, 295, 485, 551, 1121, 1711, 1843, 2755, 2813, 5605, 5723, 8555, 9215, 14065, 28615, 32509, 53447, 108737, 162545, 165967, 267235, 543685, 829835, 3153373, 15766865]

約数ペア:

[(1, 15766865), (5, 3153373), (19, 829835), (29, 543685), (59, 267235), (95, 165967), (97, 162545), (145, 108737), (295, 53447), (485, 32509), (551, 28615), (1121, 14065), (1711, 9215), (1843, 8555), (2755, 5723), (2813, 5605)]