420494900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{12781}}^1$

素因数の和:12849

約数の個数: 72

約数和(自身を含む): 1065098496

約数和(自身を除く): 644603596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 658, 700, 940, 1175, 1316, 1645, 2350, 3290, 4700, 6580, 8225, 12781, 16450, 25562, 32900, 51124, 63905, 89467, 127810, 178934, 255620, 319525, 357868, 447335, 600707, 639050, 894670, 1201414, 1278100, 1789340, 2236675, 2402828, 3003535, 4204949, 4473350, 6007070, 8409898, 8946700, 12014140, 15017675, 16819796, 21024745, 30035350, 42049490, 60070700, 84098980, 105123725, 210247450, 420494900]

約数ペア:

[(1, 420494900), (2, 210247450), (4, 105123725), (5, 84098980), (7, 60070700), (10, 42049490), (14, 30035350), (20, 21024745), (25, 16819796), (28, 15017675), (35, 12014140), (47, 8946700), (50, 8409898), (70, 6007070), (94, 4473350), (100, 4204949), (140, 3003535), (175, 2402828), (188, 2236675), (235, 1789340), (329, 1278100), (350, 1201414), (470, 894670), (658, 639050), (700, 600707), (940, 447335), (1175, 357868), (1316, 319525), (1645, 255620), (2350, 178934), (3290, 127810), (4700, 89467), (6580, 63905), (8225, 51124), (12781, 32900), (16450, 25562)]