19990322464

素因数分解:

$2^5\times 7^1\times {\mathrm{4457}}^1\times {\mathrm{20023}}^1$

素因数の和:24497

約数の個数: 48

約数和(自身を含む): 44990563968

約数和(自身を除く): 25000241504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 4457, 8914, 17828, 20023, 31199, 35656, 40046, 62398, 71312, 80092, 124796, 140161, 142624, 160184, 249592, 280322, 320368, 499184, 560644, 640736, 998368, 1121288, 2242576, 4485152, 89242511, 178485022, 356970044, 624697577, 713940088, 1249395154, 1427880176, 2498790308, 2855760352, 4997580616, 9995161232, 19990322464]

約数ペア:

[(1, 19990322464), (2, 9995161232), (4, 4997580616), (7, 2855760352), (8, 2498790308), (14, 1427880176), (16, 1249395154), (28, 713940088), (32, 624697577), (56, 356970044), (112, 178485022), (224, 89242511), (4457, 4485152), (8914, 2242576), (17828, 1121288), (20023, 998368), (31199, 640736), (35656, 560644), (40046, 499184), (62398, 320368), (71312, 280322), (80092, 249592), (124796, 160184), (140161, 142624)]