137820640

素因数分解:

$2^5\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4759}}^1$

素因数の和:4955

約数の個数: 48

約数和(自身を含む): 327468960

約数和(自身を除く): 189648320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 4759, 5792, 7240, 9518, 14480, 19036, 23795, 28960, 38072, 47590, 76144, 95180, 152288, 190360, 380720, 761440, 861379, 1722758, 3445516, 4306895, 6891032, 8613790, 13782064, 17227580, 27564128, 34455160, 68910320, 137820640]

約数ペア:

[(1, 137820640), (2, 68910320), (4, 34455160), (5, 27564128), (8, 17227580), (10, 13782064), (16, 8613790), (20, 6891032), (32, 4306895), (40, 3445516), (80, 1722758), (160, 861379), (181, 761440), (362, 380720), (724, 190360), (905, 152288), (1448, 95180), (1810, 76144), (2896, 47590), (3620, 38072), (4759, 28960), (5792, 23795), (7240, 19036), (9518, 14480)]