21897261680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1261363}}^1$

素因数の和:1261414

約数の個数: 80

約数和(自身を含む): 60061108224

約数和(自身を除く): 38163846544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 1261363, 2522726, 5045452, 6306815, 8829541, 10090904, 12613630, 17659082, 20181808, 25227260, 35318164, 39102253, 44147705, 50454520, 70636328, 78204506, 88295410, 100909040, 141272656, 156409012, 176590820, 195511265, 273715771, 312818024, 353181640, 391022530, 547431542, 625636048, 706363280, 782045060, 1094863084, 1368578855, 1564090120, 2189726168, 2737157710, 3128180240, 4379452336, 5474315420, 10948630840, 21897261680]

約数ペア:

[(1, 21897261680), (2, 10948630840), (4, 5474315420), (5, 4379452336), (7, 3128180240), (8, 2737157710), (10, 2189726168), (14, 1564090120), (16, 1368578855), (20, 1094863084), (28, 782045060), (31, 706363280), (35, 625636048), (40, 547431542), (56, 391022530), (62, 353181640), (70, 312818024), (80, 273715771), (112, 195511265), (124, 176590820), (140, 156409012), (155, 141272656), (217, 100909040), (248, 88295410), (280, 78204506), (310, 70636328), (434, 50454520), (496, 44147705), (560, 39102253), (620, 35318164), (868, 25227260), (1085, 20181808), (1240, 17659082), (1736, 12613630), (2170, 10090904), (2480, 8829541), (3472, 6306815), (4340, 5045452), (8680, 2522726), (17360, 1261363)]