20201584

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 60

約数和(自身を含む): 43931712

約数和(自身を除く): 23730128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 241, 248, 338, 403, 482, 496, 676, 806, 964, 1352, 1612, 1928, 2704, 3133, 3224, 3856, 5239, 6266, 6448, 7471, 10478, 12532, 14942, 20956, 25064, 29884, 40729, 41912, 50128, 59768, 81458, 83824, 97123, 119536, 162916, 194246, 325832, 388492, 651664, 776984, 1262599, 1553968, 2525198, 5050396, 10100792, 20201584]

約数ペア:

[(1, 20201584), (2, 10100792), (4, 5050396), (8, 2525198), (13, 1553968), (16, 1262599), (26, 776984), (31, 651664), (52, 388492), (62, 325832), (104, 194246), (124, 162916), (169, 119536), (208, 97123), (241, 83824), (248, 81458), (338, 59768), (403, 50128), (482, 41912), (496, 40729), (676, 29884), (806, 25064), (964, 20956), (1352, 14942), (1612, 12532), (1928, 10478), (2704, 7471), (3133, 6448), (3224, 6266), (3856, 5239)]