388586770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{20903}}^1$

素因数の和:20947

約数の個数: 48

約数和(自身を含む): 826293312

約数和(自身を除く): 437706542

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1430, 1690, 1859, 3718, 9295, 18590, 20903, 41806, 104515, 209030, 229933, 271739, 459866, 543478, 1149665, 1358695, 2299330, 2717390, 2989129, 3532607, 5978258, 7065214, 14945645, 17663035, 29891290, 35326070, 38858677, 77717354, 194293385, 388586770]

約数ペア:

[(1, 388586770), (2, 194293385), (5, 77717354), (10, 38858677), (11, 35326070), (13, 29891290), (22, 17663035), (26, 14945645), (55, 7065214), (65, 5978258), (110, 3532607), (130, 2989129), (143, 2717390), (169, 2299330), (286, 1358695), (338, 1149665), (715, 543478), (845, 459866), (1430, 271739), (1690, 229933), (1859, 209030), (3718, 104515), (9295, 41806), (18590, 20903)]