7138340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 16619904

約数和(自身を除く): 9481564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 457, 710, 781, 914, 1420, 1562, 1828, 2285, 3124, 3905, 4570, 5027, 7810, 9140, 10054, 15620, 20108, 25135, 32447, 50270, 64894, 100540, 129788, 162235, 324470, 356917, 648940, 713834, 1427668, 1784585, 3569170, 7138340]

約数ペア:

[(1, 7138340), (2, 3569170), (4, 1784585), (5, 1427668), (10, 713834), (11, 648940), (20, 356917), (22, 324470), (44, 162235), (55, 129788), (71, 100540), (110, 64894), (142, 50270), (220, 32447), (284, 25135), (355, 20108), (457, 15620), (710, 10054), (781, 9140), (914, 7810), (1420, 5027), (1562, 4570), (1828, 3905), (2285, 3124)]