19662920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10459}}^1$

素因数の和:10517

約数の個数: 32

約数和(自身を含む): 45187200

約数和(自身を除く): 25524280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10459, 20918, 41836, 52295, 83672, 104590, 209180, 418360, 491573, 983146, 1966292, 2457865, 3932584, 4915730, 9831460, 19662920]

約数ペア:

[(1, 19662920), (2, 9831460), (4, 4915730), (5, 3932584), (8, 2457865), (10, 1966292), (20, 983146), (40, 491573), (47, 418360), (94, 209180), (188, 104590), (235, 83672), (376, 52295), (470, 41836), (940, 20918), (1880, 10459)]