51139640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67289}}^1$

素因数の和:67319

約数の個数: 32

約数和(自身を含む): 121122000

約数和(自身を除く): 69982360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 67289, 134578, 269156, 336445, 538312, 672890, 1278491, 1345780, 2556982, 2691560, 5113964, 6392455, 10227928, 12784910, 25569820, 51139640]

約数ペア:

[(1, 51139640), (2, 25569820), (4, 12784910), (5, 10227928), (8, 6392455), (10, 5113964), (19, 2691560), (20, 2556982), (38, 1345780), (40, 1278491), (76, 672890), (95, 538312), (152, 336445), (190, 269156), (380, 134578), (760, 67289)]