19710740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20113}}^1$

素因数の和:20136

約数の個数: 36

約数和(自身を含む): 48152916

約数和(自身を除く): 28442176

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20113, 40226, 80452, 100565, 140791, 201130, 281582, 402260, 563164, 703955, 985537, 1407910, 1971074, 2815820, 3942148, 4927685, 9855370, 19710740]

約数ペア:

[(1, 19710740), (2, 9855370), (4, 4927685), (5, 3942148), (7, 2815820), (10, 1971074), (14, 1407910), (20, 985537), (28, 703955), (35, 563164), (49, 402260), (70, 281582), (98, 201130), (140, 140791), (196, 100565), (245, 80452), (490, 40226), (980, 20113)]