80555180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 185540544

約数和(自身を除く): 104985364

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 71, 85, 94, 142, 170, 188, 235, 284, 340, 355, 470, 710, 799, 940, 1207, 1420, 1598, 2414, 3196, 3337, 3995, 4828, 5041, 6035, 6674, 7990, 10082, 12070, 13348, 15980, 16685, 20164, 24140, 25205, 33370, 50410, 56729, 66740, 85697, 100820, 113458, 171394, 226916, 236927, 283645, 342788, 428485, 473854, 567290, 856970, 947708, 1134580, 1184635, 1713940, 2369270, 4027759, 4738540, 8055518, 16111036, 20138795, 40277590, 80555180]

約数ペア:

[(1, 80555180), (2, 40277590), (4, 20138795), (5, 16111036), (10, 8055518), (17, 4738540), (20, 4027759), (34, 2369270), (47, 1713940), (68, 1184635), (71, 1134580), (85, 947708), (94, 856970), (142, 567290), (170, 473854), (188, 428485), (235, 342788), (284, 283645), (340, 236927), (355, 226916), (470, 171394), (710, 113458), (799, 100820), (940, 85697), (1207, 66740), (1420, 56729), (1598, 50410), (2414, 33370), (3196, 25205), (3337, 24140), (3995, 20164), (4828, 16685), (5041, 15980), (6035, 13348), (6674, 12070), (7990, 10082)]