1217978135

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{397}}^1\times {\mathrm{461}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 1615166784

約数和(自身を除く): 397188649

約数列:

[1, 5, 11, 55, 121, 397, 461, 605, 1331, 1985, 2305, 4367, 5071, 6655, 21835, 25355, 48037, 55781, 183017, 240185, 278905, 528407, 613591, 915085, 2013187, 2642035, 3067955, 10065935, 22145057, 110725285, 243595627, 1217978135]

約数ペア:

[(1, 1217978135), (5, 243595627), (11, 110725285), (55, 22145057), (121, 10065935), (397, 3067955), (461, 2642035), (605, 2013187), (1331, 915085), (1985, 613591), (2305, 528407), (4367, 278905), (5071, 240185), (6655, 183017), (21835, 55781), (25355, 48037)]