257169712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 549964800

約数和(自身を除く): 292795088

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 47, 76, 82, 94, 152, 164, 188, 304, 328, 376, 439, 656, 752, 779, 878, 893, 1558, 1756, 1786, 1927, 3116, 3512, 3572, 3854, 6232, 7024, 7144, 7708, 8341, 12464, 14288, 15416, 16682, 17999, 20633, 30832, 33364, 35998, 36613, 41266, 66728, 71996, 73226, 82532, 133456, 143992, 146452, 165064, 287984, 292904, 330128, 341981, 392027, 585808, 683962, 784054, 845953, 1367924, 1568108, 1691906, 2735848, 3136216, 3383812, 5471696, 6272432, 6767624, 13535248, 16073107, 32146214, 64292428, 128584856, 257169712]

約数ペア:

[(1, 257169712), (2, 128584856), (4, 64292428), (8, 32146214), (16, 16073107), (19, 13535248), (38, 6767624), (41, 6272432), (47, 5471696), (76, 3383812), (82, 3136216), (94, 2735848), (152, 1691906), (164, 1568108), (188, 1367924), (304, 845953), (328, 784054), (376, 683962), (439, 585808), (656, 392027), (752, 341981), (779, 330128), (878, 292904), (893, 287984), (1558, 165064), (1756, 146452), (1786, 143992), (1927, 133456), (3116, 82532), (3512, 73226), (3572, 71996), (3854, 66728), (6232, 41266), (7024, 36613), (7144, 35998), (7708, 33364), (8341, 30832), (12464, 20633), (14288, 17999), (15416, 16682)]