40891000

素因数分解:

$2^3\times 5^3\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 96857280

約数和(自身を除く): 55966280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 103, 125, 200, 206, 250, 397, 412, 500, 515, 794, 824, 1000, 1030, 1588, 1985, 2060, 2575, 3176, 3970, 4120, 5150, 7940, 9925, 10300, 12875, 15880, 19850, 20600, 25750, 39700, 40891, 49625, 51500, 79400, 81782, 99250, 103000, 163564, 198500, 204455, 327128, 397000, 408910, 817820, 1022275, 1635640, 2044550, 4089100, 5111375, 8178200, 10222750, 20445500, 40891000]

約数ペア:

[(1, 40891000), (2, 20445500), (4, 10222750), (5, 8178200), (8, 5111375), (10, 4089100), (20, 2044550), (25, 1635640), (40, 1022275), (50, 817820), (100, 408910), (103, 397000), (125, 327128), (200, 204455), (206, 198500), (250, 163564), (397, 103000), (412, 99250), (500, 81782), (515, 79400), (794, 51500), (824, 49625), (1000, 40891), (1030, 39700), (1588, 25750), (1985, 20600), (2060, 19850), (2575, 15880), (3176, 12875), (3970, 10300), (4120, 9925), (5150, 7940)]