19711560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 65577600

約数和(自身を除く): 45866040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 109, 110, 120, 132, 137, 165, 218, 220, 264, 274, 327, 330, 411, 436, 440, 545, 548, 654, 660, 685, 822, 872, 1090, 1096, 1199, 1308, 1320, 1370, 1507, 1635, 1644, 2055, 2180, 2398, 2616, 2740, 3014, 3270, 3288, 3597, 4110, 4360, 4521, 4796, 5480, 5995, 6028, 6540, 7194, 7535, 8220, 9042, 9592, 11990, 12056, 13080, 14388, 14933, 15070, 16440, 17985, 18084, 22605, 23980, 28776, 29866, 30140, 35970, 36168, 44799, 45210, 47960, 59732, 60280, 71940, 74665, 89598, 90420, 119464, 143880, 149330, 164263, 179196, 180840, 223995, 298660, 328526, 358392, 447990, 492789, 597320, 657052, 821315, 895980, 985578, 1314104, 1642630, 1791960, 1971156, 2463945, 3285260, 3942312, 4927890, 6570520, 9855780, 19711560]

約数ペア:

[(1, 19711560), (2, 9855780), (3, 6570520), (4, 4927890), (5, 3942312), (6, 3285260), (8, 2463945), (10, 1971156), (11, 1791960), (12, 1642630), (15, 1314104), (20, 985578), (22, 895980), (24, 821315), (30, 657052), (33, 597320), (40, 492789), (44, 447990), (55, 358392), (60, 328526), (66, 298660), (88, 223995), (109, 180840), (110, 179196), (120, 164263), (132, 149330), (137, 143880), (165, 119464), (218, 90420), (220, 89598), (264, 74665), (274, 71940), (327, 60280), (330, 59732), (411, 47960), (436, 45210), (440, 44799), (545, 36168), (548, 35970), (654, 30140), (660, 29866), (685, 28776), (822, 23980), (872, 22605), (1090, 18084), (1096, 17985), (1199, 16440), (1308, 15070), (1320, 14933), (1370, 14388), (1507, 13080), (1635, 12056), (1644, 11990), (2055, 9592), (2180, 9042), (2398, 8220), (2616, 7535), (2740, 7194), (3014, 6540), (3270, 6028), (3288, 5995), (3597, 5480), (4110, 4796), (4360, 4521)]