19521480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 128

約数和(自身を含む): 66769920

約数和(自身を除く): 47248440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 643, 660, 690, 759, 920, 1012, 1265, 1286, 1320, 1380, 1518, 1929, 2024, 2530, 2572, 2760, 3036, 3215, 3795, 3858, 5060, 5144, 6072, 6430, 7073, 7590, 7716, 9645, 10120, 12860, 14146, 14789, 15180, 15432, 19290, 21219, 25720, 28292, 29578, 30360, 35365, 38580, 42438, 44367, 56584, 59156, 70730, 73945, 77160, 84876, 88734, 106095, 118312, 141460, 147890, 162679, 169752, 177468, 212190, 221835, 282920, 295780, 325358, 354936, 424380, 443670, 488037, 591560, 650716, 813395, 848760, 887340, 976074, 1301432, 1626790, 1774680, 1952148, 2440185, 3253580, 3904296, 4880370, 6507160, 9760740, 19521480]

約数ペア:

[(1, 19521480), (2, 9760740), (3, 6507160), (4, 4880370), (5, 3904296), (6, 3253580), (8, 2440185), (10, 1952148), (11, 1774680), (12, 1626790), (15, 1301432), (20, 976074), (22, 887340), (23, 848760), (24, 813395), (30, 650716), (33, 591560), (40, 488037), (44, 443670), (46, 424380), (55, 354936), (60, 325358), (66, 295780), (69, 282920), (88, 221835), (92, 212190), (110, 177468), (115, 169752), (120, 162679), (132, 147890), (138, 141460), (165, 118312), (184, 106095), (220, 88734), (230, 84876), (253, 77160), (264, 73945), (276, 70730), (330, 59156), (345, 56584), (440, 44367), (460, 42438), (506, 38580), (552, 35365), (643, 30360), (660, 29578), (690, 28292), (759, 25720), (920, 21219), (1012, 19290), (1265, 15432), (1286, 15180), (1320, 14789), (1380, 14146), (1518, 12860), (1929, 10120), (2024, 9645), (2530, 7716), (2572, 7590), (2760, 7073), (3036, 6430), (3215, 6072), (3795, 5144), (3858, 5060)]