20369360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 32127280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 293, 316, 395, 440, 586, 632, 790, 869, 880, 1172, 1264, 1465, 1580, 1738, 2344, 2930, 3160, 3223, 3476, 4345, 4688, 5860, 6320, 6446, 6952, 8690, 11720, 12892, 13904, 16115, 17380, 23147, 23440, 25784, 32230, 34760, 46294, 51568, 64460, 69520, 92588, 115735, 128920, 185176, 231470, 254617, 257840, 370352, 462940, 509234, 925880, 1018468, 1273085, 1851760, 2036936, 2546170, 4073872, 5092340, 10184680, 20369360]

約数ペア:

[(1, 20369360), (2, 10184680), (4, 5092340), (5, 4073872), (8, 2546170), (10, 2036936), (11, 1851760), (16, 1273085), (20, 1018468), (22, 925880), (40, 509234), (44, 462940), (55, 370352), (79, 257840), (80, 254617), (88, 231470), (110, 185176), (158, 128920), (176, 115735), (220, 92588), (293, 69520), (316, 64460), (395, 51568), (440, 46294), (586, 34760), (632, 32230), (790, 25784), (869, 23440), (880, 23147), (1172, 17380), (1264, 16115), (1465, 13904), (1580, 12892), (1738, 11720), (2344, 8690), (2930, 6952), (3160, 6446), (3223, 6320), (3476, 5860), (4345, 4688)]