15940000

素因数分解:

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

素因数の和:827

約数の個数: 60

約数和(自身を含む): 39263994

約数和(自身を除く): 23323994

約数列:

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

約数ペア:

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