20688528

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 62059520

約数和(自身を除く): 41370992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 67, 84, 112, 134, 168, 201, 268, 336, 402, 469, 536, 804, 919, 938, 1072, 1407, 1608, 1838, 1876, 2757, 2814, 3216, 3676, 3752, 5514, 5628, 6433, 7352, 7504, 11028, 11256, 12866, 14704, 19299, 22056, 22512, 25732, 38598, 44112, 51464, 61573, 77196, 102928, 123146, 154392, 184719, 246292, 308784, 369438, 431011, 492584, 738876, 862022, 985168, 1293033, 1477752, 1724044, 2586066, 2955504, 3448088, 5172132, 6896176, 10344264, 20688528]

約数ペア:

[(1, 20688528), (2, 10344264), (3, 6896176), (4, 5172132), (6, 3448088), (7, 2955504), (8, 2586066), (12, 1724044), (14, 1477752), (16, 1293033), (21, 985168), (24, 862022), (28, 738876), (42, 492584), (48, 431011), (56, 369438), (67, 308784), (84, 246292), (112, 184719), (134, 154392), (168, 123146), (201, 102928), (268, 77196), (336, 61573), (402, 51464), (469, 44112), (536, 38598), (804, 25732), (919, 22512), (938, 22056), (1072, 19299), (1407, 14704), (1608, 12866), (1838, 11256), (1876, 11028), (2757, 7504), (2814, 7352), (3216, 6433), (3676, 5628), (3752, 5514)]