189987665

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2143}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 277862400

約数和(自身を除く): 87874735

約数列:

[1, 5, 7, 17, 35, 85, 119, 149, 595, 745, 1043, 2143, 2533, 5215, 10715, 12665, 15001, 17731, 36431, 75005, 88655, 182155, 255017, 319307, 1275085, 1596535, 2235149, 5428219, 11175745, 27141095, 37997533, 189987665]

約数ペア:

[(1, 189987665), (5, 37997533), (7, 27141095), (17, 11175745), (35, 5428219), (85, 2235149), (119, 1596535), (149, 1275085), (595, 319307), (745, 255017), (1043, 182155), (2143, 88655), (2533, 75005), (5215, 36431), (10715, 17731), (12665, 15001)]