55121950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:781

約数の個数: 48

約数和(自身を含む): 111399120

約数和(自身を除く): 56277170

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 137, 274, 325, 619, 650, 685, 1238, 1370, 1781, 3095, 3425, 3562, 6190, 6850, 8047, 8905, 15475, 16094, 17810, 30950, 40235, 44525, 80470, 84803, 89050, 169606, 201175, 402350, 424015, 848030, 1102439, 2120075, 2204878, 4240150, 5512195, 11024390, 27560975, 55121950]

約数ペア:

[(1, 55121950), (2, 27560975), (5, 11024390), (10, 5512195), (13, 4240150), (25, 2204878), (26, 2120075), (50, 1102439), (65, 848030), (130, 424015), (137, 402350), (274, 201175), (325, 169606), (619, 89050), (650, 84803), (685, 80470), (1238, 44525), (1370, 40235), (1781, 30950), (3095, 17810), (3425, 16094), (3562, 15475), (6190, 8905), (6850, 8047)]