213595855

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 294940800

約数和(自身を除く): 81344945

約数列:

[1, 5, 11, 41, 55, 79, 109, 121, 205, 395, 451, 545, 605, 869, 1199, 2255, 3239, 4345, 4469, 4961, 5995, 8611, 9559, 13189, 16195, 22345, 24805, 35629, 43055, 47795, 49159, 65945, 94721, 178145, 245795, 353051, 391919, 473605, 540749, 1041931, 1765255, 1959595, 2703745, 3883561, 5209655, 19417805, 42719171, 213595855]

約数ペア:

[(1, 213595855), (5, 42719171), (11, 19417805), (41, 5209655), (55, 3883561), (79, 2703745), (109, 1959595), (121, 1765255), (205, 1041931), (395, 540749), (451, 473605), (545, 391919), (605, 353051), (869, 245795), (1199, 178145), (2255, 94721), (3239, 65945), (4345, 49159), (4469, 47795), (4961, 43055), (5995, 35629), (8611, 24805), (9559, 22345), (13189, 16195)]