200926460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 493010784

約数和(自身を除く): 292084324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 421, 487, 490, 842, 974, 980, 1684, 1948, 2105, 2435, 2947, 3409, 4210, 4870, 5894, 6818, 8420, 9740, 11788, 13636, 14735, 17045, 20629, 23863, 29470, 34090, 41258, 47726, 58940, 68180, 82516, 95452, 103145, 119315, 205027, 206290, 238630, 410054, 412580, 477260, 820108, 1025135, 1435189, 2050270, 2870378, 4100540, 5740756, 7175945, 10046323, 14351890, 20092646, 28703780, 40185292, 50231615, 100463230, 200926460]

約数ペア:

[(1, 200926460), (2, 100463230), (4, 50231615), (5, 40185292), (7, 28703780), (10, 20092646), (14, 14351890), (20, 10046323), (28, 7175945), (35, 5740756), (49, 4100540), (70, 2870378), (98, 2050270), (140, 1435189), (196, 1025135), (245, 820108), (421, 477260), (487, 412580), (490, 410054), (842, 238630), (974, 206290), (980, 205027), (1684, 119315), (1948, 103145), (2105, 95452), (2435, 82516), (2947, 68180), (3409, 58940), (4210, 47726), (4870, 41258), (5894, 34090), (6818, 29470), (8420, 23863), (9740, 20629), (11788, 17045), (13636, 14735)]