1951841380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1\times {\mathrm{1123}}^1$

素因数の和:1265

約数の個数: 72

約数和(自身を含む): 4289507712

約数和(自身を除く): 2337666332

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 1123, 1849, 2021, 2246, 3698, 4042, 4492, 5615, 7396, 8084, 9245, 10105, 11230, 18490, 20210, 22460, 36980, 40420, 48289, 52781, 86903, 96578, 105562, 173806, 193156, 211124, 241445, 263905, 347612, 434515, 482890, 527810, 869030, 965780, 1055620, 1738060, 2076427, 2269583, 4152854, 4539166, 8305708, 9078332, 10382135, 11347915, 20764270, 22695830, 41528540, 45391660, 97592069, 195184138, 390368276, 487960345, 975920690, 1951841380]

約数ペア:

[(1, 1951841380), (2, 975920690), (4, 487960345), (5, 390368276), (10, 195184138), (20, 97592069), (43, 45391660), (47, 41528540), (86, 22695830), (94, 20764270), (172, 11347915), (188, 10382135), (215, 9078332), (235, 8305708), (430, 4539166), (470, 4152854), (860, 2269583), (940, 2076427), (1123, 1738060), (1849, 1055620), (2021, 965780), (2246, 869030), (3698, 527810), (4042, 482890), (4492, 434515), (5615, 347612), (7396, 263905), (8084, 241445), (9245, 211124), (10105, 193156), (11230, 173806), (18490, 105562), (20210, 96578), (22460, 86903), (36980, 52781), (40420, 48289)]