31990400

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:806

約数の個数: 96

約数和(自身を含む): 85215900

約数和(自身を除く): 53225500

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 640, 650, 769, 800, 832, 1040, 1300, 1538, 1600, 1664, 2080, 2600, 3076, 3200, 3845, 4160, 5200, 6152, 7690, 8320, 9997, 10400, 12304, 15380, 19225, 19994, 20800, 24608, 30760, 38450, 39988, 41600, 49216, 49985, 61520, 76900, 79976, 98432, 99970, 123040, 153800, 159952, 199940, 246080, 249925, 307600, 319904, 399880, 492160, 499850, 615200, 639808, 799760, 999700, 1230400, 1279616, 1599520, 1999400, 2460800, 3199040, 3998800, 6398080, 7997600, 15995200, 31990400]

約数ペア:

[(1, 31990400), (2, 15995200), (4, 7997600), (5, 6398080), (8, 3998800), (10, 3199040), (13, 2460800), (16, 1999400), (20, 1599520), (25, 1279616), (26, 1230400), (32, 999700), (40, 799760), (50, 639808), (52, 615200), (64, 499850), (65, 492160), (80, 399880), (100, 319904), (104, 307600), (128, 249925), (130, 246080), (160, 199940), (200, 159952), (208, 153800), (260, 123040), (320, 99970), (325, 98432), (400, 79976), (416, 76900), (520, 61520), (640, 49985), (650, 49216), (769, 41600), (800, 39988), (832, 38450), (1040, 30760), (1300, 24608), (1538, 20800), (1600, 19994), (1664, 19225), (2080, 15380), (2600, 12304), (3076, 10400), (3200, 9997), (3845, 8320), (4160, 7690), (5200, 6152)]