155615180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{158791}}^1$

素因数の和:158814

約数の個数: 36

約数和(自身を含む): 380148048

約数和(自身を除く): 224532868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 158791, 317582, 635164, 793955, 1111537, 1587910, 2223074, 3175820, 4446148, 5557685, 7780759, 11115370, 15561518, 22230740, 31123036, 38903795, 77807590, 155615180]

約数ペア:

[(1, 155615180), (2, 77807590), (4, 38903795), (5, 31123036), (7, 22230740), (10, 15561518), (14, 11115370), (20, 7780759), (28, 5557685), (35, 4446148), (49, 3175820), (70, 2223074), (98, 1587910), (140, 1111537), (196, 793955), (245, 635164), (490, 317582), (980, 158791)]