19900656

素因数分解:

$2^4\times 3^2\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1350

約数の個数: 60

約数和(自身を含む): 56233008

約数和(自身を除く): 36332352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 113, 144, 226, 339, 452, 678, 904, 1017, 1223, 1356, 1808, 2034, 2446, 2712, 3669, 4068, 4892, 5424, 7338, 8136, 9784, 11007, 14676, 16272, 19568, 22014, 29352, 44028, 58704, 88056, 138199, 176112, 276398, 414597, 552796, 829194, 1105592, 1243791, 1658388, 2211184, 2487582, 3316776, 4975164, 6633552, 9950328, 19900656]

約数ペア:

[(1, 19900656), (2, 9950328), (3, 6633552), (4, 4975164), (6, 3316776), (8, 2487582), (9, 2211184), (12, 1658388), (16, 1243791), (18, 1105592), (24, 829194), (36, 552796), (48, 414597), (72, 276398), (113, 176112), (144, 138199), (226, 88056), (339, 58704), (452, 44028), (678, 29352), (904, 22014), (1017, 19568), (1223, 16272), (1356, 14676), (1808, 11007), (2034, 9784), (2446, 8136), (2712, 7338), (3669, 5424), (4068, 4892)]