261799128

素因数分解:

$2^3\times 3^4\times {\mathrm{404011}}^1$

素因数の和:404029

約数の個数: 40

約数和(自身を含む): 733281780

約数和(自身を除く): 471482652

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 404011, 808022, 1212033, 1616044, 2424066, 3232088, 3636099, 4848132, 7272198, 9696264, 10908297, 14544396, 21816594, 29088792, 32724891, 43633188, 65449782, 87266376, 130899564, 261799128]

約数ペア:

[(1, 261799128), (2, 130899564), (3, 87266376), (4, 65449782), (6, 43633188), (8, 32724891), (9, 29088792), (12, 21816594), (18, 14544396), (24, 10908297), (27, 9696264), (36, 7272198), (54, 4848132), (72, 3636099), (81, 3232088), (108, 2424066), (162, 1616044), (216, 1212033), (324, 808022), (648, 404011)]