31383520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{4003}}^1$

素因数の和:4032

約数の個数: 72

約数和(自身を含む): 86270184

約数和(自身を除く): 54886664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 4003, 7840, 8006, 16012, 20015, 28021, 32024, 40030, 56042, 64048, 80060, 112084, 128096, 140105, 160120, 196147, 224168, 280210, 320240, 392294, 448336, 560420, 640480, 784588, 896672, 980735, 1120840, 1569176, 1961470, 2241680, 3138352, 3922940, 4483360, 6276704, 7845880, 15691760, 31383520]

約数ペア:

[(1, 31383520), (2, 15691760), (4, 7845880), (5, 6276704), (7, 4483360), (8, 3922940), (10, 3138352), (14, 2241680), (16, 1961470), (20, 1569176), (28, 1120840), (32, 980735), (35, 896672), (40, 784588), (49, 640480), (56, 560420), (70, 448336), (80, 392294), (98, 320240), (112, 280210), (140, 224168), (160, 196147), (196, 160120), (224, 140105), (245, 128096), (280, 112084), (392, 80060), (490, 64048), (560, 56042), (784, 40030), (980, 32024), (1120, 28021), (1568, 20015), (1960, 16012), (3920, 8006), (4003, 7840)]