213306880

素因数分解:

$2^9\times 5^1\times {\mathrm{97}}^1\times {\mathrm{859}}^1$

素因数の和:979

約数の個数: 80

約数和(自身を含む): 517310640

約数和(自身を除く): 304003760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 320, 388, 485, 512, 640, 776, 859, 970, 1280, 1552, 1718, 1940, 2560, 3104, 3436, 3880, 4295, 6208, 6872, 7760, 8590, 12416, 13744, 15520, 17180, 24832, 27488, 31040, 34360, 49664, 54976, 62080, 68720, 83323, 109952, 124160, 137440, 166646, 219904, 248320, 274880, 333292, 416615, 439808, 549760, 666584, 833230, 1099520, 1333168, 1666460, 2199040, 2666336, 3332920, 5332672, 6665840, 10665344, 13331680, 21330688, 26663360, 42661376, 53326720, 106653440, 213306880]

約数ペア:

[(1, 213306880), (2, 106653440), (4, 53326720), (5, 42661376), (8, 26663360), (10, 21330688), (16, 13331680), (20, 10665344), (32, 6665840), (40, 5332672), (64, 3332920), (80, 2666336), (97, 2199040), (128, 1666460), (160, 1333168), (194, 1099520), (256, 833230), (320, 666584), (388, 549760), (485, 439808), (512, 416615), (640, 333292), (776, 274880), (859, 248320), (970, 219904), (1280, 166646), (1552, 137440), (1718, 124160), (1940, 109952), (2560, 83323), (3104, 68720), (3436, 62080), (3880, 54976), (4295, 49664), (6208, 34360), (6872, 31040), (7760, 27488), (8590, 24832), (12416, 17180), (13744, 15520)]