19690750

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1093

約数の個数: 32

約数和(自身を含む): 37365120

約数和(自身を除く): 17674370

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 997, 1975, 1994, 3950, 4985, 9875, 9970, 19750, 24925, 49850, 78763, 124625, 157526, 249250, 393815, 787630, 1969075, 3938150, 9845375, 19690750]

約数ペア:

[(1, 19690750), (2, 9845375), (5, 3938150), (10, 1969075), (25, 787630), (50, 393815), (79, 249250), (125, 157526), (158, 124625), (250, 78763), (395, 49850), (790, 24925), (997, 19750), (1975, 9970), (1994, 9875), (3950, 4985)]