981257480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3504491}}^1$

素因数の和:3504509

約数の個数: 32

約数和(自身を含む): 2523234240

約数和(自身を除く): 1541976760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3504491, 7008982, 14017964, 17522455, 24531437, 28035928, 35044910, 49062874, 70089820, 98125748, 122657185, 140179640, 196251496, 245314370, 490628740, 981257480]

約数ペア:

[(1, 981257480), (2, 490628740), (4, 245314370), (5, 196251496), (7, 140179640), (8, 122657185), (10, 98125748), (14, 70089820), (20, 49062874), (28, 35044910), (35, 28035928), (40, 24531437), (56, 17522455), (70, 14017964), (140, 7008982), (280, 3504491)]