20003830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 45577728

約数和(自身を除く): 25573898

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 83, 110, 154, 166, 313, 385, 415, 581, 626, 770, 830, 913, 1162, 1565, 1826, 2191, 2905, 3130, 3443, 4382, 4565, 5810, 6391, 6886, 9130, 10955, 12782, 17215, 21910, 24101, 25979, 31955, 34430, 48202, 51958, 63910, 120505, 129895, 181853, 241010, 259790, 285769, 363706, 571538, 909265, 1428845, 1818530, 2000383, 2857690, 4000766, 10001915, 20003830]

約数ペア:

[(1, 20003830), (2, 10001915), (5, 4000766), (7, 2857690), (10, 2000383), (11, 1818530), (14, 1428845), (22, 909265), (35, 571538), (55, 363706), (70, 285769), (77, 259790), (83, 241010), (110, 181853), (154, 129895), (166, 120505), (313, 63910), (385, 51958), (415, 48202), (581, 34430), (626, 31955), (770, 25979), (830, 24101), (913, 21910), (1162, 17215), (1565, 12782), (1826, 10955), (2191, 9130), (2905, 6886), (3130, 6391), (3443, 5810), (4382, 4565)]