21628440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:913

約数の個数: 96

約数和(自身を含む): 71341920

約数和(自身を除く): 49713480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 73, 90, 120, 146, 180, 219, 292, 360, 365, 438, 584, 657, 730, 823, 876, 1095, 1314, 1460, 1646, 1752, 2190, 2469, 2628, 2920, 3285, 3292, 4115, 4380, 4938, 5256, 6570, 6584, 7407, 8230, 8760, 9876, 12345, 13140, 14814, 16460, 19752, 24690, 26280, 29628, 32920, 37035, 49380, 59256, 60079, 74070, 98760, 120158, 148140, 180237, 240316, 296280, 300395, 360474, 480632, 540711, 600790, 720948, 901185, 1081422, 1201580, 1441896, 1802370, 2162844, 2403160, 2703555, 3604740, 4325688, 5407110, 7209480, 10814220, 21628440]

約数ペア:

[(1, 21628440), (2, 10814220), (3, 7209480), (4, 5407110), (5, 4325688), (6, 3604740), (8, 2703555), (9, 2403160), (10, 2162844), (12, 1802370), (15, 1441896), (18, 1201580), (20, 1081422), (24, 901185), (30, 720948), (36, 600790), (40, 540711), (45, 480632), (60, 360474), (72, 300395), (73, 296280), (90, 240316), (120, 180237), (146, 148140), (180, 120158), (219, 98760), (292, 74070), (360, 60079), (365, 59256), (438, 49380), (584, 37035), (657, 32920), (730, 29628), (823, 26280), (876, 24690), (1095, 19752), (1314, 16460), (1460, 14814), (1646, 13140), (1752, 12345), (2190, 9876), (2469, 8760), (2628, 8230), (2920, 7407), (3285, 6584), (3292, 6570), (4115, 5256), (4380, 4938)]