840736

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 48

約数和(自身を含む): 1862784

約数和(自身を除く): 1022048

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 47, 52, 86, 94, 104, 172, 188, 208, 344, 376, 416, 559, 611, 688, 752, 1118, 1222, 1376, 1504, 2021, 2236, 2444, 4042, 4472, 4888, 8084, 8944, 9776, 16168, 17888, 19552, 26273, 32336, 52546, 64672, 105092, 210184, 420368, 840736]

約数ペア:

[(1, 840736), (2, 420368), (4, 210184), (8, 105092), (13, 64672), (16, 52546), (26, 32336), (32, 26273), (43, 19552), (47, 17888), (52, 16168), (86, 9776), (94, 8944), (104, 8084), (172, 4888), (188, 4472), (208, 4042), (344, 2444), (376, 2236), (416, 2021), (559, 1504), (611, 1376), (688, 1222), (752, 1118)]