13781945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 4603975

約数列:

[1, 5, 23, 37, 41, 79, 115, 185, 205, 395, 851, 943, 1517, 1817, 2923, 3239, 4255, 4715, 7585, 9085, 14615, 16195, 34891, 67229, 74497, 119843, 174455, 336145, 372485, 599215, 2756389, 13781945]

約数ペア:

[(1, 13781945), (5, 2756389), (23, 599215), (37, 372485), (41, 336145), (79, 174455), (115, 119843), (185, 74497), (205, 67229), (395, 34891), (851, 16195), (943, 14615), (1517, 9085), (1817, 7585), (2923, 4715), (3239, 4255)]