31301480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111791}}^1$

素因数の和:111809

約数の個数: 32

約数和(自身を含む): 80490240

約数和(自身を除く): 49188760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111791, 223582, 447164, 558955, 782537, 894328, 1117910, 1565074, 2235820, 3130148, 3912685, 4471640, 6260296, 7825370, 15650740, 31301480]

約数ペア:

[(1, 31301480), (2, 15650740), (4, 7825370), (5, 6260296), (7, 4471640), (8, 3912685), (10, 3130148), (14, 2235820), (20, 1565074), (28, 1117910), (35, 894328), (40, 782537), (56, 558955), (70, 447164), (140, 223582), (280, 111791)]