18002215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 29859840

約数和(自身を除く): 11857625

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 77, 95, 107, 115, 133, 161, 209, 253, 385, 437, 535, 665, 749, 805, 1045, 1177, 1265, 1463, 1771, 2033, 2185, 2461, 3059, 3745, 4807, 5885, 7315, 8239, 8855, 10165, 12305, 14231, 15295, 17227, 22363, 24035, 27071, 33649, 41195, 46759, 71155, 86135, 111815, 135355, 156541, 168245, 189497, 233795, 327313, 514349, 782705, 947485, 1636565, 2571745, 3600443, 18002215]

約数ペア:

[(1, 18002215), (5, 3600443), (7, 2571745), (11, 1636565), (19, 947485), (23, 782705), (35, 514349), (55, 327313), (77, 233795), (95, 189497), (107, 168245), (115, 156541), (133, 135355), (161, 111815), (209, 86135), (253, 71155), (385, 46759), (437, 41195), (535, 33649), (665, 27071), (749, 24035), (805, 22363), (1045, 17227), (1177, 15295), (1265, 14231), (1463, 12305), (1771, 10165), (2033, 8855), (2185, 8239), (2461, 7315), (3059, 5885), (3745, 4807)]