20352720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:772

約数の個数: 80

約数和(自身を含む): 63656640

約数和(自身を除く): 43303920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 619, 685, 822, 1096, 1238, 1370, 1644, 1857, 2055, 2192, 2476, 2740, 3095, 3288, 3714, 4110, 4952, 5480, 6190, 6576, 7428, 8220, 9285, 9904, 10960, 12380, 14856, 16440, 18570, 24760, 29712, 32880, 37140, 49520, 74280, 84803, 148560, 169606, 254409, 339212, 424015, 508818, 678424, 848030, 1017636, 1272045, 1356848, 1696060, 2035272, 2544090, 3392120, 4070544, 5088180, 6784240, 10176360, 20352720]

約数ペア:

[(1, 20352720), (2, 10176360), (3, 6784240), (4, 5088180), (5, 4070544), (6, 3392120), (8, 2544090), (10, 2035272), (12, 1696060), (15, 1356848), (16, 1272045), (20, 1017636), (24, 848030), (30, 678424), (40, 508818), (48, 424015), (60, 339212), (80, 254409), (120, 169606), (137, 148560), (240, 84803), (274, 74280), (411, 49520), (548, 37140), (619, 32880), (685, 29712), (822, 24760), (1096, 18570), (1238, 16440), (1370, 14856), (1644, 12380), (1857, 10960), (2055, 9904), (2192, 9285), (2476, 8220), (2740, 7428), (3095, 6576), (3288, 6190), (3714, 5480), (4110, 4952)]