20719270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14489}}^1$

素因数の和:14520

約数の個数: 32

約数和(自身を含む): 43817760

約数和(自身を除く): 23098490

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14489, 28978, 72445, 144890, 159379, 188357, 318758, 376714, 796895, 941785, 1593790, 1883570, 2071927, 4143854, 10359635, 20719270]

約数ペア:

[(1, 20719270), (2, 10359635), (5, 4143854), (10, 2071927), (11, 1883570), (13, 1593790), (22, 941785), (26, 796895), (55, 376714), (65, 318758), (110, 188357), (130, 159379), (143, 144890), (286, 72445), (715, 28978), (1430, 14489)]