19817050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 40658112

約数和(自身を除く): 20841062

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 137, 263, 274, 275, 526, 550, 685, 1315, 1370, 1507, 2630, 2893, 3014, 3425, 5786, 6575, 6850, 7535, 13150, 14465, 15070, 28930, 36031, 37675, 72062, 72325, 75350, 144650, 180155, 360310, 396341, 792682, 900775, 1801550, 1981705, 3963410, 9908525, 19817050]

約数ペア:

[(1, 19817050), (2, 9908525), (5, 3963410), (10, 1981705), (11, 1801550), (22, 900775), (25, 792682), (50, 396341), (55, 360310), (110, 180155), (137, 144650), (263, 75350), (274, 72325), (275, 72062), (526, 37675), (550, 36031), (685, 28930), (1315, 15070), (1370, 14465), (1507, 13150), (2630, 7535), (2893, 6850), (3014, 6575), (3425, 5786)]