420368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 40

約数和(自身を含む): 916608

約数和(自身を除く): 496240

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 47, 52, 86, 94, 104, 172, 188, 208, 344, 376, 559, 611, 688, 752, 1118, 1222, 2021, 2236, 2444, 4042, 4472, 4888, 8084, 8944, 9776, 16168, 26273, 32336, 52546, 105092, 210184, 420368]

約数ペア:

[(1, 420368), (2, 210184), (4, 105092), (8, 52546), (13, 32336), (16, 26273), (26, 16168), (43, 9776), (47, 8944), (52, 8084), (86, 4888), (94, 4472), (104, 4042), (172, 2444), (188, 2236), (208, 2021), (344, 1222), (376, 1118), (559, 752), (611, 688)]