187858990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{457}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 383444928

約数和(自身を除く): 195585938

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 101, 110, 185, 202, 370, 407, 457, 505, 814, 914, 1010, 1111, 2035, 2222, 2285, 3737, 4070, 4570, 5027, 5555, 7474, 10054, 11110, 16909, 18685, 25135, 33818, 37370, 41107, 46157, 50270, 82214, 84545, 92314, 169090, 185999, 205535, 230785, 371998, 411070, 461570, 507727, 929995, 1015454, 1707809, 1859990, 2538635, 3415618, 5077270, 8539045, 17078090, 18785899, 37571798, 93929495, 187858990]

約数ペア:

[(1, 187858990), (2, 93929495), (5, 37571798), (10, 18785899), (11, 17078090), (22, 8539045), (37, 5077270), (55, 3415618), (74, 2538635), (101, 1859990), (110, 1707809), (185, 1015454), (202, 929995), (370, 507727), (407, 461570), (457, 411070), (505, 371998), (814, 230785), (914, 205535), (1010, 185999), (1111, 169090), (2035, 92314), (2222, 84545), (2285, 82214), (3737, 50270), (4070, 46157), (4570, 41107), (5027, 37370), (5555, 33818), (7474, 25135), (10054, 18685), (11110, 16909)]