28148900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{367}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 67079040

約数和(自身を除く): 38930140

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 59, 65, 100, 118, 130, 236, 260, 295, 325, 367, 590, 650, 734, 767, 1180, 1300, 1468, 1475, 1534, 1835, 2950, 3068, 3670, 3835, 4771, 5900, 7340, 7670, 9175, 9542, 15340, 18350, 19084, 19175, 21653, 23855, 36700, 38350, 43306, 47710, 76700, 86612, 95420, 108265, 119275, 216530, 238550, 281489, 433060, 477100, 541325, 562978, 1082650, 1125956, 1407445, 2165300, 2814890, 5629780, 7037225, 14074450, 28148900]

約数ペア:

[(1, 28148900), (2, 14074450), (4, 7037225), (5, 5629780), (10, 2814890), (13, 2165300), (20, 1407445), (25, 1125956), (26, 1082650), (50, 562978), (52, 541325), (59, 477100), (65, 433060), (100, 281489), (118, 238550), (130, 216530), (236, 119275), (260, 108265), (295, 95420), (325, 86612), (367, 76700), (590, 47710), (650, 43306), (734, 38350), (767, 36700), (1180, 23855), (1300, 21653), (1468, 19175), (1475, 19084), (1534, 18350), (1835, 15340), (2950, 9542), (3068, 9175), (3670, 7670), (3835, 7340), (4771, 5900)]