19508155

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 26107200

約数和(自身を除く): 6599045

約数列:

[1, 5, 19, 29, 73, 95, 97, 145, 365, 485, 551, 1387, 1843, 2117, 2755, 2813, 6935, 7081, 9215, 10585, 14065, 35405, 40223, 53447, 134539, 201115, 205349, 267235, 672695, 1026745, 3901631, 19508155]

約数ペア:

[(1, 19508155), (5, 3901631), (19, 1026745), (29, 672695), (73, 267235), (95, 205349), (97, 201115), (145, 134539), (365, 53447), (485, 40223), (551, 35405), (1387, 14065), (1843, 10585), (2117, 9215), (2755, 7081), (2813, 6935)]