2143390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 4212000

約数和(自身を除く): 2068610

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 389, 551, 778, 1102, 1945, 2755, 3890, 5510, 7391, 11281, 14782, 22562, 36955, 56405, 73910, 112810, 214339, 428678, 1071695, 2143390]

約数ペア:

[(1, 2143390), (2, 1071695), (5, 428678), (10, 214339), (19, 112810), (29, 73910), (38, 56405), (58, 36955), (95, 22562), (145, 14782), (190, 11281), (290, 7391), (389, 5510), (551, 3890), (778, 2755), (1102, 1945)]