689021480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2460791}}^1$

素因数の和:2460809

約数の個数: 32

約数和(自身を含む): 1771770240

約数和(自身を除く): 1082748760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2460791, 4921582, 9843164, 12303955, 17225537, 19686328, 24607910, 34451074, 49215820, 68902148, 86127685, 98431640, 137804296, 172255370, 344510740, 689021480]

約数ペア:

[(1, 689021480), (2, 344510740), (4, 172255370), (5, 137804296), (7, 98431640), (8, 86127685), (10, 68902148), (14, 49215820), (20, 34451074), (28, 24607910), (35, 19686328), (40, 17225537), (56, 12303955), (70, 9843164), (140, 4921582), (280, 2460791)]