20090580905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{27179}}^1$

素因数の和:27485

約数の個数: 32

約数和(自身を含む): 26301542400

約数和(自身を除く): 6210961495

約数列:

[1, 5, 19, 31, 95, 155, 251, 589, 1255, 2945, 4769, 7781, 23845, 27179, 38905, 135895, 147839, 516401, 739195, 842549, 2582005, 4212745, 6821929, 16008431, 34109645, 80042155, 129616651, 211479799, 648083255, 1057398995, 4018116181, 20090580905]

約数ペア:

[(1, 20090580905), (5, 4018116181), (19, 1057398995), (31, 648083255), (95, 211479799), (155, 129616651), (251, 80042155), (589, 34109645), (1255, 16008431), (2945, 6821929), (4769, 4212745), (7781, 2582005), (23845, 842549), (27179, 739195), (38905, 516401), (135895, 147839)]