199879790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{2749}}^1$

素因数の和:3428

約数の個数: 32

約数和(自身を含む): 393228000

約数和(自身を除く): 193348210

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 661, 1322, 2749, 3305, 5498, 6610, 7271, 13745, 14542, 27490, 30239, 36355, 60478, 72710, 151195, 302390, 1817089, 3634178, 9085445, 18170890, 19987979, 39975958, 99939895, 199879790]

約数ペア:

[(1, 199879790), (2, 99939895), (5, 39975958), (10, 19987979), (11, 18170890), (22, 9085445), (55, 3634178), (110, 1817089), (661, 302390), (1322, 151195), (2749, 72710), (3305, 60478), (5498, 36355), (6610, 30239), (7271, 27490), (13745, 14542)]