256486880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123311}}^1$

素因数の和:123339

約数の個数: 48

約数和(自身を含む): 652567104

約数和(自身を除く): 396080224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 123311, 246622, 493244, 616555, 986488, 1233110, 1603043, 1972976, 2466220, 3206086, 3945952, 4932440, 6412172, 8015215, 9864880, 12824344, 16030430, 19729760, 25648688, 32060860, 51297376, 64121720, 128243440, 256486880]

約数ペア:

[(1, 256486880), (2, 128243440), (4, 64121720), (5, 51297376), (8, 32060860), (10, 25648688), (13, 19729760), (16, 16030430), (20, 12824344), (26, 9864880), (32, 8015215), (40, 6412172), (52, 4932440), (65, 3945952), (80, 3206086), (104, 2466220), (130, 1972976), (160, 1603043), (208, 1233110), (260, 986488), (416, 616555), (520, 493244), (1040, 246622), (2080, 123311)]