20201021600

素因数分解:

$2^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{3889}}^1$

素因数の和:4103

約数の個数: 144

約数和(自身を含む): 50809872960

約数和(自身を除く): 30608851360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 151, 160, 172, 200, 215, 302, 344, 400, 430, 604, 688, 755, 800, 860, 1075, 1208, 1376, 1510, 1720, 2150, 2416, 3020, 3440, 3775, 3889, 4300, 4832, 6040, 6493, 6880, 7550, 7778, 8600, 12080, 12986, 15100, 15556, 17200, 19445, 24160, 25972, 30200, 31112, 32465, 34400, 38890, 51944, 60400, 62224, 64930, 77780, 97225, 103888, 120800, 124448, 129860, 155560, 162325, 167227, 194450, 207776, 259720, 311120, 324650, 334454, 388900, 519440, 587239, 622240, 649300, 668908, 777800, 836135, 1038880, 1174478, 1298600, 1337816, 1555600, 1672270, 2348956, 2597200, 2675632, 2936195, 3111200, 3344540, 4180675, 4697912, 5194400, 5351264, 5872390, 6689080, 8361350, 9395824, 11744780, 13378160, 14680975, 16722700, 18791648, 23489560, 25251277, 26756320, 29361950, 33445400, 46979120, 50502554, 58723900, 66890800, 93958240, 101005108, 117447800, 126256385, 133781600, 202010216, 234895600, 252512770, 404020432, 469791200, 505025540, 631281925, 808040864, 1010051080, 1262563850, 2020102160, 2525127700, 4040204320, 5050255400, 10100510800, 20201021600]

約数ペア:

[(1, 20201021600), (2, 10100510800), (4, 5050255400), (5, 4040204320), (8, 2525127700), (10, 2020102160), (16, 1262563850), (20, 1010051080), (25, 808040864), (32, 631281925), (40, 505025540), (43, 469791200), (50, 404020432), (80, 252512770), (86, 234895600), (100, 202010216), (151, 133781600), (160, 126256385), (172, 117447800), (200, 101005108), (215, 93958240), (302, 66890800), (344, 58723900), (400, 50502554), (430, 46979120), (604, 33445400), (688, 29361950), (755, 26756320), (800, 25251277), (860, 23489560), (1075, 18791648), (1208, 16722700), (1376, 14680975), (1510, 13378160), (1720, 11744780), (2150, 9395824), (2416, 8361350), (3020, 6689080), (3440, 5872390), (3775, 5351264), (3889, 5194400), (4300, 4697912), (4832, 4180675), (6040, 3344540), (6493, 3111200), (6880, 2936195), (7550, 2675632), (7778, 2597200), (8600, 2348956), (12080, 1672270), (12986, 1555600), (15100, 1337816), (15556, 1298600), (17200, 1174478), (19445, 1038880), (24160, 836135), (25972, 777800), (30200, 668908), (31112, 649300), (32465, 622240), (34400, 587239), (38890, 519440), (51944, 388900), (60400, 334454), (62224, 324650), (64930, 311120), (77780, 259720), (97225, 207776), (103888, 194450), (120800, 167227), (124448, 162325), (129860, 155560)]