20187714115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 26878901760

約数和(自身を除く): 6691187645

約数列:

[1, 5, 17, 37, 79, 85, 185, 193, 395, 421, 629, 965, 1343, 2105, 2923, 3145, 3281, 6715, 7141, 7157, 14615, 15247, 15577, 16405, 33259, 35705, 35785, 49691, 76235, 77885, 81253, 121397, 166295, 248455, 259199, 264809, 406265, 564139, 565403, 606985, 1230583, 1295995, 1324045, 1381301, 2820695, 2827015, 3006361, 6152915, 6418987, 6906505, 9590363, 15031805, 20919911, 32094935, 47951815, 51108137, 104599555, 109122779, 237502519, 255540685, 545613895, 1187512595, 4037542823, 20187714115]

約数ペア:

[(1, 20187714115), (5, 4037542823), (17, 1187512595), (37, 545613895), (79, 255540685), (85, 237502519), (185, 109122779), (193, 104599555), (395, 51108137), (421, 47951815), (629, 32094935), (965, 20919911), (1343, 15031805), (2105, 9590363), (2923, 6906505), (3145, 6418987), (3281, 6152915), (6715, 3006361), (7141, 2827015), (7157, 2820695), (14615, 1381301), (15247, 1324045), (15577, 1295995), (16405, 1230583), (33259, 606985), (35705, 565403), (35785, 564139), (49691, 406265), (76235, 264809), (77885, 259199), (81253, 248455), (121397, 166295)]