20459936

素因数分解:

$2^5\times 7^1\times {\mathrm{241}}^1\times {\mathrm{379}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 46347840

約数和(自身を除く): 25887904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 241, 379, 482, 758, 964, 1516, 1687, 1928, 2653, 3032, 3374, 3856, 5306, 6064, 6748, 7712, 10612, 12128, 13496, 21224, 26992, 42448, 53984, 84896, 91339, 182678, 365356, 639373, 730712, 1278746, 1461424, 2557492, 2922848, 5114984, 10229968, 20459936]

約数ペア:

[(1, 20459936), (2, 10229968), (4, 5114984), (7, 2922848), (8, 2557492), (14, 1461424), (16, 1278746), (28, 730712), (32, 639373), (56, 365356), (112, 182678), (224, 91339), (241, 84896), (379, 53984), (482, 42448), (758, 26992), (964, 21224), (1516, 13496), (1687, 12128), (1928, 10612), (2653, 7712), (3032, 6748), (3374, 6064), (3856, 5306)]