201318721880

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{16183177}}^1$

素因数の和:16183499

約数の個数: 32

約数和(自身を含む): 454423638240

約数和(自身を除く): 253104916360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 16183177, 32366354, 64732708, 80915885, 129465416, 161831770, 323663540, 647327080, 5032968047, 10065936094, 20131872188, 25164840235, 40263744376, 50329680470, 100659360940, 201318721880]

約数ペア:

[(1, 201318721880), (2, 100659360940), (4, 50329680470), (5, 40263744376), (8, 25164840235), (10, 20131872188), (20, 10065936094), (40, 5032968047), (311, 647327080), (622, 323663540), (1244, 161831770), (1555, 129465416), (2488, 80915885), (3110, 64732708), (6220, 32366354), (12440, 16183177)]