80688400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:353

約数の個数: 120

約数和(自身を含む): 213111360

約数和(自身を除く): 132422960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 59, 65, 80, 100, 104, 118, 130, 200, 208, 236, 260, 263, 295, 325, 400, 472, 520, 526, 590, 650, 767, 944, 1040, 1052, 1180, 1300, 1315, 1475, 1534, 2104, 2360, 2600, 2630, 2950, 3068, 3419, 3835, 4208, 4720, 5200, 5260, 5900, 6136, 6575, 6838, 7670, 10520, 11800, 12272, 13150, 13676, 15340, 15517, 17095, 19175, 21040, 23600, 26300, 27352, 30680, 31034, 34190, 38350, 52600, 54704, 61360, 62068, 68380, 76700, 77585, 85475, 105200, 124136, 136760, 153400, 155170, 170950, 201721, 248272, 273520, 306800, 310340, 341900, 387925, 403442, 620680, 683800, 775850, 806884, 1008605, 1241360, 1367600, 1551700, 1613768, 2017210, 3103400, 3227536, 4034420, 5043025, 6206800, 8068840, 10086050, 16137680, 20172100, 40344200, 80688400]

約数ペア:

[(1, 80688400), (2, 40344200), (4, 20172100), (5, 16137680), (8, 10086050), (10, 8068840), (13, 6206800), (16, 5043025), (20, 4034420), (25, 3227536), (26, 3103400), (40, 2017210), (50, 1613768), (52, 1551700), (59, 1367600), (65, 1241360), (80, 1008605), (100, 806884), (104, 775850), (118, 683800), (130, 620680), (200, 403442), (208, 387925), (236, 341900), (260, 310340), (263, 306800), (295, 273520), (325, 248272), (400, 201721), (472, 170950), (520, 155170), (526, 153400), (590, 136760), (650, 124136), (767, 105200), (944, 85475), (1040, 77585), (1052, 76700), (1180, 68380), (1300, 62068), (1315, 61360), (1475, 54704), (1534, 52600), (2104, 38350), (2360, 34190), (2600, 31034), (2630, 30680), (2950, 27352), (3068, 26300), (3419, 23600), (3835, 21040), (4208, 19175), (4720, 17095), (5200, 15517), (5260, 15340), (5900, 13676), (6136, 13150), (6575, 12272), (6838, 11800), (7670, 10520)]