17913702920

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{912103}}^1$

素因数の和:912605

約数の個数: 32

約数和(自身を含む): 40387965120

約数和(自身を除く): 22474262200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 912103, 1824206, 3648412, 4560515, 7296824, 9121030, 18242060, 36484120, 447842573, 895685146, 1791370292, 2239212865, 3582740584, 4478425730, 8956851460, 17913702920]

約数ペア:

[(1, 17913702920), (2, 8956851460), (4, 4478425730), (5, 3582740584), (8, 2239212865), (10, 1791370292), (20, 895685146), (40, 447842573), (491, 36484120), (982, 18242060), (1964, 9121030), (2455, 7296824), (3928, 4560515), (4910, 3648412), (9820, 1824206), (19640, 912103)]