12120405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 23328000

約数和(自身を除く): 11207595

約数列:

[1, 3, 5, 11, 15, 17, 29, 33, 51, 55, 85, 87, 145, 149, 165, 187, 255, 319, 435, 447, 493, 561, 745, 935, 957, 1479, 1595, 1639, 2235, 2465, 2533, 2805, 4321, 4785, 4917, 5423, 7395, 7599, 8195, 12665, 12963, 16269, 21605, 24585, 27115, 27863, 37995, 47531, 64815, 73457, 81345, 83589, 139315, 142593, 220371, 237655, 367285, 417945, 712965, 808027, 1101855, 2424081, 4040135, 12120405]

約数ペア:

[(1, 12120405), (3, 4040135), (5, 2424081), (11, 1101855), (15, 808027), (17, 712965), (29, 417945), (33, 367285), (51, 237655), (55, 220371), (85, 142593), (87, 139315), (145, 83589), (149, 81345), (165, 73457), (187, 64815), (255, 47531), (319, 37995), (435, 27863), (447, 27115), (493, 24585), (561, 21605), (745, 16269), (935, 12963), (957, 12665), (1479, 8195), (1595, 7599), (1639, 7395), (2235, 5423), (2465, 4917), (2533, 4785), (2805, 4321)]