20387290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 27875750

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 83, 110, 121, 145, 154, 166, 203, 242, 290, 319, 385, 406, 415, 581, 605, 638, 770, 830, 847, 913, 1015, 1162, 1210, 1595, 1694, 1826, 2030, 2233, 2407, 2905, 3190, 3509, 4235, 4466, 4565, 4814, 5810, 6391, 7018, 8470, 9130, 10043, 11165, 12035, 12782, 16849, 17545, 20086, 22330, 24070, 24563, 26477, 31955, 33698, 35090, 49126, 50215, 52954, 63910, 70301, 84245, 100430, 122815, 132385, 140602, 168490, 185339, 245630, 264770, 291247, 351505, 370678, 582494, 703010, 926695, 1456235, 1853390, 2038729, 2912470, 4077458, 10193645, 20387290]

約数ペア:

[(1, 20387290), (2, 10193645), (5, 4077458), (7, 2912470), (10, 2038729), (11, 1853390), (14, 1456235), (22, 926695), (29, 703010), (35, 582494), (55, 370678), (58, 351505), (70, 291247), (77, 264770), (83, 245630), (110, 185339), (121, 168490), (145, 140602), (154, 132385), (166, 122815), (203, 100430), (242, 84245), (290, 70301), (319, 63910), (385, 52954), (406, 50215), (415, 49126), (581, 35090), (605, 33698), (638, 31955), (770, 26477), (830, 24563), (847, 24070), (913, 22330), (1015, 20086), (1162, 17545), (1210, 16849), (1595, 12782), (1694, 12035), (1826, 11165), (2030, 10043), (2233, 9130), (2407, 8470), (2905, 7018), (3190, 6391), (3509, 5810), (4235, 4814), (4466, 4565)]