20815944

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 34480056

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 191, 228, 239, 382, 456, 478, 573, 717, 764, 956, 1146, 1434, 1528, 1912, 2292, 2868, 3629, 4541, 4584, 5736, 7258, 9082, 10887, 13623, 14516, 18164, 21774, 27246, 29032, 36328, 43548, 45649, 54492, 87096, 91298, 108984, 136947, 182596, 273894, 365192, 547788, 867331, 1095576, 1734662, 2601993, 3469324, 5203986, 6938648, 10407972, 20815944]

約数ペア:

[(1, 20815944), (2, 10407972), (3, 6938648), (4, 5203986), (6, 3469324), (8, 2601993), (12, 1734662), (19, 1095576), (24, 867331), (38, 547788), (57, 365192), (76, 273894), (114, 182596), (152, 136947), (191, 108984), (228, 91298), (239, 87096), (382, 54492), (456, 45649), (478, 43548), (573, 36328), (717, 29032), (764, 27246), (956, 21774), (1146, 18164), (1434, 14516), (1528, 13623), (1912, 10887), (2292, 9082), (2868, 7258), (3629, 5736), (4541, 4584)]