20172100

素因数分解:

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

素因数の和:349

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 27949820

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 59, 65, 100, 118, 130, 236, 260, 263, 295, 325, 526, 590, 650, 767, 1052, 1180, 1300, 1315, 1475, 1534, 2630, 2950, 3068, 3419, 3835, 5260, 5900, 6575, 6838, 7670, 13150, 13676, 15340, 15517, 17095, 19175, 26300, 31034, 34190, 38350, 62068, 68380, 76700, 77585, 85475, 155170, 170950, 201721, 310340, 341900, 387925, 403442, 775850, 806884, 1008605, 1551700, 2017210, 4034420, 5043025, 10086050, 20172100]

約数ペア:

[(1, 20172100), (2, 10086050), (4, 5043025), (5, 4034420), (10, 2017210), (13, 1551700), (20, 1008605), (25, 806884), (26, 775850), (50, 403442), (52, 387925), (59, 341900), (65, 310340), (100, 201721), (118, 170950), (130, 155170), (236, 85475), (260, 77585), (263, 76700), (295, 68380), (325, 62068), (526, 38350), (590, 34190), (650, 31034), (767, 26300), (1052, 19175), (1180, 17095), (1300, 15517), (1315, 15340), (1475, 13676), (1534, 13150), (2630, 7670), (2950, 6838), (3068, 6575), (3419, 5900), (3835, 5260)]