859636820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{198073}}^1$

素因数の和:198120

約数の個数: 48

約数和(自身を含む): 2129691648

約数和(自身を除く): 1270054828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 198073, 396146, 792292, 990365, 1386511, 1980730, 2773022, 3961460, 5546044, 6140263, 6932555, 12280526, 13865110, 24561052, 27730220, 30701315, 42981841, 61402630, 85963682, 122805260, 171927364, 214909205, 429818410, 859636820]

約数ペア:

[(1, 859636820), (2, 429818410), (4, 214909205), (5, 171927364), (7, 122805260), (10, 85963682), (14, 61402630), (20, 42981841), (28, 30701315), (31, 27730220), (35, 24561052), (62, 13865110), (70, 12280526), (124, 6932555), (140, 6140263), (155, 5546044), (217, 3961460), (310, 2773022), (434, 1980730), (620, 1386511), (868, 990365), (1085, 792292), (2170, 396146), (4340, 198073)]