29937820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 70383600

約数和(自身を除く): 40445780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 139, 178, 220, 242, 278, 356, 445, 484, 556, 605, 695, 890, 979, 1210, 1390, 1529, 1780, 1958, 2420, 2780, 3058, 3916, 4895, 6116, 7645, 9790, 10769, 12371, 15290, 16819, 19580, 21538, 24742, 30580, 33638, 43076, 49484, 53845, 61855, 67276, 84095, 107690, 123710, 136081, 168190, 215380, 247420, 272162, 336380, 544324, 680405, 1360810, 1496891, 2721620, 2993782, 5987564, 7484455, 14968910, 29937820]

約数ペア:

[(1, 29937820), (2, 14968910), (4, 7484455), (5, 5987564), (10, 2993782), (11, 2721620), (20, 1496891), (22, 1360810), (44, 680405), (55, 544324), (89, 336380), (110, 272162), (121, 247420), (139, 215380), (178, 168190), (220, 136081), (242, 123710), (278, 107690), (356, 84095), (445, 67276), (484, 61855), (556, 53845), (605, 49484), (695, 43076), (890, 33638), (979, 30580), (1210, 24742), (1390, 21538), (1529, 19580), (1780, 16819), (1958, 15290), (2420, 12371), (2780, 10769), (3058, 9790), (3916, 7645), (4895, 6116)]