2257580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 5386080

約数和(自身を除く): 3128500

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 457, 494, 914, 988, 1235, 1828, 2285, 2470, 4570, 4940, 5941, 8683, 9140, 11882, 17366, 23764, 29705, 34732, 43415, 59410, 86830, 112879, 118820, 173660, 225758, 451516, 564395, 1128790, 2257580]

約数ペア:

[(1, 2257580), (2, 1128790), (4, 564395), (5, 451516), (10, 225758), (13, 173660), (19, 118820), (20, 112879), (26, 86830), (38, 59410), (52, 43415), (65, 34732), (76, 29705), (95, 23764), (130, 17366), (190, 11882), (247, 9140), (260, 8683), (380, 5941), (457, 4940), (494, 4570), (914, 2470), (988, 2285), (1235, 1828)]