12712905

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 23452416

約数和(自身を除く): 10739511

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 173, 207, 213, 345, 355, 519, 639, 865, 1035, 1065, 1557, 1633, 2595, 3195, 3979, 4899, 7785, 8165, 11937, 12283, 14697, 19895, 24495, 35811, 36849, 59685, 61415, 73485, 110547, 179055, 184245, 282509, 552735, 847527, 1412545, 2542581, 4237635, 12712905]

約数ペア:

[(1, 12712905), (3, 4237635), (5, 2542581), (9, 1412545), (15, 847527), (23, 552735), (45, 282509), (69, 184245), (71, 179055), (115, 110547), (173, 73485), (207, 61415), (213, 59685), (345, 36849), (355, 35811), (519, 24495), (639, 19895), (865, 14697), (1035, 12283), (1065, 11937), (1557, 8165), (1633, 7785), (2595, 4899), (3195, 3979)]