1520255380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{67447}}^1$

素因数の和:67493

約数の個数: 72

約数和(自身を含む): 3875292288

約数和(自身を除く): 2355036908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 67447, 134894, 269788, 337235, 472129, 674470, 944258, 1348940, 1551281, 1888516, 2360645, 3102562, 3304903, 4721290, 6205124, 6609806, 7756405, 9442580, 10858967, 13219612, 15512810, 16524515, 21717934, 31025620, 33049030, 43435868, 54294835, 66098060, 76012769, 108589670, 152025538, 217179340, 304051076, 380063845, 760127690, 1520255380]

約数ペア:

[(1, 1520255380), (2, 760127690), (4, 380063845), (5, 304051076), (7, 217179340), (10, 152025538), (14, 108589670), (20, 76012769), (23, 66098060), (28, 54294835), (35, 43435868), (46, 33049030), (49, 31025620), (70, 21717934), (92, 16524515), (98, 15512810), (115, 13219612), (140, 10858967), (161, 9442580), (196, 7756405), (230, 6609806), (245, 6205124), (322, 4721290), (460, 3304903), (490, 3102562), (644, 2360645), (805, 1888516), (980, 1551281), (1127, 1348940), (1610, 944258), (2254, 674470), (3220, 472129), (4508, 337235), (5635, 269788), (11270, 134894), (22540, 67447)]