1664939920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{12983}}^1$

素因数の和:13232

約数の個数: 80

約数和(自身を含む): 4443644160

約数和(自身を除く): 2778704240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 280, 458, 560, 916, 1145, 1603, 1832, 2290, 3206, 3664, 4580, 6412, 8015, 9160, 12824, 12983, 16030, 18320, 25648, 25966, 32060, 51932, 64120, 64915, 90881, 103864, 128240, 129830, 181762, 207728, 259660, 363524, 454405, 519320, 727048, 908810, 1038640, 1454096, 1817620, 2973107, 3635240, 5946214, 7270480, 11892428, 14865535, 20811749, 23784856, 29731070, 41623498, 47569712, 59462140, 83246996, 104058745, 118924280, 166493992, 208117490, 237848560, 332987984, 416234980, 832469960, 1664939920]

約数ペア:

[(1, 1664939920), (2, 832469960), (4, 416234980), (5, 332987984), (7, 237848560), (8, 208117490), (10, 166493992), (14, 118924280), (16, 104058745), (20, 83246996), (28, 59462140), (35, 47569712), (40, 41623498), (56, 29731070), (70, 23784856), (80, 20811749), (112, 14865535), (140, 11892428), (229, 7270480), (280, 5946214), (458, 3635240), (560, 2973107), (916, 1817620), (1145, 1454096), (1603, 1038640), (1832, 908810), (2290, 727048), (3206, 519320), (3664, 454405), (4580, 363524), (6412, 259660), (8015, 207728), (9160, 181762), (12824, 129830), (12983, 128240), (16030, 103864), (18320, 90881), (25648, 64915), (25966, 64120), (32060, 51932)]