9925000

素因数分解:

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

素因数の和:428

約数の個数: 48

約数和(自身を含む): 23318820

約数和(自身を除く): 13393820

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 397, 500, 625, 794, 1000, 1250, 1588, 1985, 2500, 3125, 3176, 3970, 5000, 6250, 7940, 9925, 12500, 15880, 19850, 25000, 39700, 49625, 79400, 99250, 198500, 248125, 397000, 496250, 992500, 1240625, 1985000, 2481250, 4962500, 9925000]

約数ペア:

[(1, 9925000), (2, 4962500), (4, 2481250), (5, 1985000), (8, 1240625), (10, 992500), (20, 496250), (25, 397000), (40, 248125), (50, 198500), (100, 99250), (125, 79400), (200, 49625), (250, 39700), (397, 25000), (500, 19850), (625, 15880), (794, 12500), (1000, 9925), (1250, 7940), (1588, 6250), (1985, 5000), (2500, 3970), (3125, 3176)]