81635768

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{5507}}^1$

素因数の和:5639

約数の個数: 32

約数和(自身を含む): 163587600

約数和(自身を除く): 81951832

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1853, 3706, 5507, 7412, 11014, 14824, 22028, 44056, 93619, 187238, 374476, 600263, 748952, 1200526, 2401052, 4802104, 10204471, 20408942, 40817884, 81635768]

約数ペア:

[(1, 81635768), (2, 40817884), (4, 20408942), (8, 10204471), (17, 4802104), (34, 2401052), (68, 1200526), (109, 748952), (136, 600263), (218, 374476), (436, 187238), (872, 93619), (1853, 44056), (3706, 22028), (5507, 14824), (7412, 11014)]