257156655

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{1933}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 481519584

約数和(自身を除く): 224362929

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 181, 245, 543, 735, 905, 1267, 1933, 2715, 3801, 5799, 6335, 8869, 9665, 13531, 19005, 26607, 28995, 40593, 44345, 67655, 94717, 133035, 202965, 284151, 349873, 473585, 1049619, 1420755, 1749365, 2449111, 5248095, 7347333, 12245555, 17143777, 36736665, 51431331, 85718885, 257156655]

約数ペア:

[(1, 257156655), (3, 85718885), (5, 51431331), (7, 36736665), (15, 17143777), (21, 12245555), (35, 7347333), (49, 5248095), (105, 2449111), (147, 1749365), (181, 1420755), (245, 1049619), (543, 473585), (735, 349873), (905, 284151), (1267, 202965), (1933, 133035), (2715, 94717), (3801, 67655), (5799, 44345), (6335, 40593), (8869, 28995), (9665, 26607), (13531, 19005)]