25431980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{25951}}^1$

素因数の和:25974

約数の個数: 36

約数和(自身を含む): 62129088

約数和(自身を除く): 36697108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 25951, 51902, 103804, 129755, 181657, 259510, 363314, 519020, 726628, 908285, 1271599, 1816570, 2543198, 3633140, 5086396, 6357995, 12715990, 25431980]

約数ペア:

[(1, 25431980), (2, 12715990), (4, 6357995), (5, 5086396), (7, 3633140), (10, 2543198), (14, 1816570), (20, 1271599), (28, 908285), (35, 726628), (49, 519020), (70, 363314), (98, 259510), (140, 181657), (196, 129755), (245, 103804), (490, 51902), (980, 25951)]