12129980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 27125280

約数和(自身を除く): 14995300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 233, 274, 380, 466, 548, 685, 932, 1165, 1370, 2330, 2603, 2740, 4427, 4660, 5206, 8854, 10412, 13015, 17708, 22135, 26030, 31921, 44270, 52060, 63842, 88540, 127684, 159605, 319210, 606499, 638420, 1212998, 2425996, 3032495, 6064990, 12129980]

約数ペア:

[(1, 12129980), (2, 6064990), (4, 3032495), (5, 2425996), (10, 1212998), (19, 638420), (20, 606499), (38, 319210), (76, 159605), (95, 127684), (137, 88540), (190, 63842), (233, 52060), (274, 44270), (380, 31921), (466, 26030), (548, 22135), (685, 17708), (932, 13015), (1165, 10412), (1370, 8854), (2330, 5206), (2603, 4660), (2740, 4427)]