1808949420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{47629}}^1$

素因数の和:47855

約数の個数: 72

約数和(自身を含む): 5513267760

約数和(自身を除く): 3704318340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1899, 2110, 2532, 3165, 3798, 4220, 6330, 7596, 9495, 12660, 18990, 37980, 47629, 95258, 142887, 190516, 238145, 285774, 428661, 476290, 571548, 714435, 857322, 952580, 1428870, 1714644, 2143305, 2857740, 4286610, 8573220, 10049719, 20099438, 30149157, 40198876, 50248595, 60298314, 90447471, 100497190, 120596628, 150745785, 180894942, 200994380, 301491570, 361789884, 452237355, 602983140, 904474710, 1808949420]

約数ペア:

[(1, 1808949420), (2, 904474710), (3, 602983140), (4, 452237355), (5, 361789884), (6, 301491570), (9, 200994380), (10, 180894942), (12, 150745785), (15, 120596628), (18, 100497190), (20, 90447471), (30, 60298314), (36, 50248595), (45, 40198876), (60, 30149157), (90, 20099438), (180, 10049719), (211, 8573220), (422, 4286610), (633, 2857740), (844, 2143305), (1055, 1714644), (1266, 1428870), (1899, 952580), (2110, 857322), (2532, 714435), (3165, 571548), (3798, 476290), (4220, 428661), (6330, 285774), (7596, 238145), (9495, 190516), (12660, 142887), (18990, 95258), (37980, 47629)]