80549140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82193}}^1$

素因数の和:82216

約数の個数: 36

約数和(自身を含む): 196772436

約数和(自身を除く): 116223296

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82193, 164386, 328772, 410965, 575351, 821930, 1150702, 1643860, 2301404, 2876755, 4027457, 5753510, 8054914, 11507020, 16109828, 20137285, 40274570, 80549140]

約数ペア:

[(1, 80549140), (2, 40274570), (4, 20137285), (5, 16109828), (7, 11507020), (10, 8054914), (14, 5753510), (20, 4027457), (28, 2876755), (35, 2301404), (49, 1643860), (70, 1150702), (98, 821930), (140, 575351), (196, 410965), (245, 328772), (490, 164386), (980, 82193)]