28261628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{443}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 50909040

約数和(自身を除く): 22647412

約数列:

[1, 2, 4, 41, 82, 164, 389, 443, 778, 886, 1556, 1772, 15949, 18163, 31898, 36326, 63796, 72652, 172327, 344654, 689308, 7065407, 14130814, 28261628]

約数ペア:

[(1, 28261628), (2, 14130814), (4, 7065407), (41, 689308), (82, 344654), (164, 172327), (389, 72652), (443, 63796), (778, 36326), (886, 31898), (1556, 18163), (1772, 15949)]