81466040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2549}}^1$

素因数の和:2624

約数の個数: 64

約数和(自身を含む): 198288000

約数和(自身を除く): 116821960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 1598, 1880, 2549, 3196, 3995, 5098, 6392, 7990, 10196, 12745, 15980, 20392, 25490, 31960, 43333, 50980, 86666, 101960, 119803, 173332, 216665, 239606, 346664, 433330, 479212, 599015, 866660, 958424, 1198030, 1733320, 2036651, 2396060, 4073302, 4792120, 8146604, 10183255, 16293208, 20366510, 40733020, 81466040]

約数ペア:

[(1, 81466040), (2, 40733020), (4, 20366510), (5, 16293208), (8, 10183255), (10, 8146604), (17, 4792120), (20, 4073302), (34, 2396060), (40, 2036651), (47, 1733320), (68, 1198030), (85, 958424), (94, 866660), (136, 599015), (170, 479212), (188, 433330), (235, 346664), (340, 239606), (376, 216665), (470, 173332), (680, 119803), (799, 101960), (940, 86666), (1598, 50980), (1880, 43333), (2549, 31960), (3196, 25490), (3995, 20392), (5098, 15980), (6392, 12745), (7990, 10196)]