1490247920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2661157}}^1$

素因数の和:2661177

約数の個数: 40

約数和(自身を含む): 3959803104

約数和(自身を除く): 2469555184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2661157, 5322314, 10644628, 13305785, 18628099, 21289256, 26611570, 37256198, 42578512, 53223140, 74512396, 93140495, 106446280, 149024792, 186280990, 212892560, 298049584, 372561980, 745123960, 1490247920]

約数ペア:

[(1, 1490247920), (2, 745123960), (4, 372561980), (5, 298049584), (7, 212892560), (8, 186280990), (10, 149024792), (14, 106446280), (16, 93140495), (20, 74512396), (28, 53223140), (35, 42578512), (40, 37256198), (56, 26611570), (70, 21289256), (80, 18628099), (112, 13305785), (140, 10644628), (280, 5322314), (560, 2661157)]