90842540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{401}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 196124544

約数和(自身を除く): 105282004

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 241, 401, 470, 482, 802, 940, 964, 1205, 1604, 2005, 2410, 4010, 4820, 8020, 11327, 18847, 22654, 37694, 45308, 56635, 75388, 94235, 96641, 113270, 188470, 193282, 226540, 376940, 386564, 483205, 966410, 1932820, 4542127, 9084254, 18168508, 22710635, 45421270, 90842540]

約数ペア:

[(1, 90842540), (2, 45421270), (4, 22710635), (5, 18168508), (10, 9084254), (20, 4542127), (47, 1932820), (94, 966410), (188, 483205), (235, 386564), (241, 376940), (401, 226540), (470, 193282), (482, 188470), (802, 113270), (940, 96641), (964, 94235), (1205, 75388), (1604, 56635), (2005, 45308), (2410, 37694), (4010, 22654), (4820, 18847), (8020, 11327)]