128154550

素因数分解:

$2^1\times 5^2\times {\mathrm{919}}^1\times {\mathrm{2789}}^1$

素因数の和:3720

約数の個数: 24

約数和(自身を含む): 238712400

約数和(自身を除く): 110557850

約数列:

[1, 2, 5, 10, 25, 50, 919, 1838, 2789, 4595, 5578, 9190, 13945, 22975, 27890, 45950, 69725, 139450, 2563091, 5126182, 12815455, 25630910, 64077275, 128154550]

約数ペア:

[(1, 128154550), (2, 64077275), (5, 25630910), (10, 12815455), (25, 5126182), (50, 2563091), (919, 139450), (1838, 69725), (2789, 45950), (4595, 27890), (5578, 22975), (9190, 13945)]