31880000

素因数分解:

$2^6\times 5^4\times {\mathrm{797}}^1$

素因数の和:829

約数の個数: 70

約数和(自身を含む): 79151226

約数和(自身を除く): 47271226

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 797, 800, 1000, 1250, 1594, 1600, 2000, 2500, 3188, 3985, 4000, 5000, 6376, 7970, 8000, 10000, 12752, 15940, 19925, 20000, 25504, 31880, 39850, 40000, 51008, 63760, 79700, 99625, 127520, 159400, 199250, 255040, 318800, 398500, 498125, 637600, 797000, 996250, 1275200, 1594000, 1992500, 3188000, 3985000, 6376000, 7970000, 15940000, 31880000]

約数ペア:

[(1, 31880000), (2, 15940000), (4, 7970000), (5, 6376000), (8, 3985000), (10, 3188000), (16, 1992500), (20, 1594000), (25, 1275200), (32, 996250), (40, 797000), (50, 637600), (64, 498125), (80, 398500), (100, 318800), (125, 255040), (160, 199250), (200, 159400), (250, 127520), (320, 99625), (400, 79700), (500, 63760), (625, 51008), (797, 40000), (800, 39850), (1000, 31880), (1250, 25504), (1594, 20000), (1600, 19925), (2000, 15940), (2500, 12752), (3188, 10000), (3985, 8000), (4000, 7970), (5000, 6376)]