20155951880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^2\times {\mathrm{1051}}^1$

素因数の和:1311

約数の個数: 96

約数和(自身を含む): 46823425920

約数和(自身を除く): 26667474040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 101, 188, 202, 235, 376, 404, 470, 505, 808, 940, 1010, 1051, 1880, 2020, 2102, 4040, 4204, 4747, 5255, 8408, 9494, 10201, 10510, 18988, 20402, 21020, 23735, 37976, 40804, 42040, 47470, 49397, 51005, 81608, 94940, 98794, 102010, 106151, 189880, 197588, 204020, 212302, 246985, 395176, 408040, 424604, 479447, 493970, 530755, 849208, 958894, 987940, 1061510, 1917788, 1975880, 2123020, 2397235, 3835576, 4246040, 4794470, 4989097, 9588940, 9978194, 10721251, 19177880, 19956388, 21442502, 24945485, 39912776, 42885004, 49890970, 53606255, 85770008, 99781940, 107212510, 199563880, 214425020, 428850040, 503898797, 1007797594, 2015595188, 2519493985, 4031190376, 5038987970, 10077975940, 20155951880]

約数ペア:

[(1, 20155951880), (2, 10077975940), (4, 5038987970), (5, 4031190376), (8, 2519493985), (10, 2015595188), (20, 1007797594), (40, 503898797), (47, 428850040), (94, 214425020), (101, 199563880), (188, 107212510), (202, 99781940), (235, 85770008), (376, 53606255), (404, 49890970), (470, 42885004), (505, 39912776), (808, 24945485), (940, 21442502), (1010, 19956388), (1051, 19177880), (1880, 10721251), (2020, 9978194), (2102, 9588940), (4040, 4989097), (4204, 4794470), (4747, 4246040), (5255, 3835576), (8408, 2397235), (9494, 2123020), (10201, 1975880), (10510, 1917788), (18988, 1061510), (20402, 987940), (21020, 958894), (23735, 849208), (37976, 530755), (40804, 493970), (42040, 479447), (47470, 424604), (49397, 408040), (51005, 395176), (81608, 246985), (94940, 212302), (98794, 204020), (102010, 197588), (106151, 189880)]