122198780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^2\times {\mathrm{89}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 286720560

約数和(自身を除く): 164521780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 89, 110, 158, 178, 220, 316, 356, 395, 445, 790, 869, 890, 979, 1580, 1738, 1780, 1958, 3476, 3916, 4345, 4895, 6241, 7031, 8690, 9790, 12482, 14062, 17380, 19580, 24964, 28124, 31205, 35155, 62410, 68651, 70310, 77341, 124820, 137302, 140620, 154682, 274604, 309364, 343255, 386705, 555449, 686510, 773410, 1110898, 1373020, 1546820, 2221796, 2777245, 5554490, 6109939, 11108980, 12219878, 24439756, 30549695, 61099390, 122198780]

約数ペア:

[(1, 122198780), (2, 61099390), (4, 30549695), (5, 24439756), (10, 12219878), (11, 11108980), (20, 6109939), (22, 5554490), (44, 2777245), (55, 2221796), (79, 1546820), (89, 1373020), (110, 1110898), (158, 773410), (178, 686510), (220, 555449), (316, 386705), (356, 343255), (395, 309364), (445, 274604), (790, 154682), (869, 140620), (890, 137302), (979, 124820), (1580, 77341), (1738, 70310), (1780, 68651), (1958, 62410), (3476, 35155), (3916, 31205), (4345, 28124), (4895, 24964), (6241, 19580), (7031, 17380), (8690, 14062), (9790, 12482)]