2638910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 48

約数和(自身を含む): 5431536

約数和(自身を除く): 2792626

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 43, 85, 86, 95, 170, 190, 215, 323, 361, 430, 646, 722, 731, 817, 1462, 1615, 1634, 1805, 3230, 3610, 3655, 4085, 6137, 7310, 8170, 12274, 13889, 15523, 27778, 30685, 31046, 61370, 69445, 77615, 138890, 155230, 263891, 527782, 1319455, 2638910]

約数ペア:

[(1, 2638910), (2, 1319455), (5, 527782), (10, 263891), (17, 155230), (19, 138890), (34, 77615), (38, 69445), (43, 61370), (85, 31046), (86, 30685), (95, 27778), (170, 15523), (190, 13889), (215, 12274), (323, 8170), (361, 7310), (430, 6137), (646, 4085), (722, 3655), (731, 3610), (817, 3230), (1462, 1805), (1615, 1634)]