18699230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 21735970

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 95, 110, 115, 190, 209, 230, 253, 389, 418, 437, 506, 778, 874, 1045, 1265, 1945, 2090, 2185, 2530, 3890, 4279, 4370, 4807, 7391, 8558, 8947, 9614, 14782, 17894, 21395, 24035, 36955, 42790, 44735, 48070, 73910, 81301, 89470, 98417, 162602, 169993, 196834, 339986, 406505, 492085, 813010, 849965, 984170, 1699930, 1869923, 3739846, 9349615, 18699230]

約数ペア:

[(1, 18699230), (2, 9349615), (5, 3739846), (10, 1869923), (11, 1699930), (19, 984170), (22, 849965), (23, 813010), (38, 492085), (46, 406505), (55, 339986), (95, 196834), (110, 169993), (115, 162602), (190, 98417), (209, 89470), (230, 81301), (253, 73910), (389, 48070), (418, 44735), (437, 42790), (506, 36955), (778, 24035), (874, 21395), (1045, 17894), (1265, 14782), (1945, 9614), (2090, 8947), (2185, 8558), (2530, 7391), (3890, 4807), (4279, 4370)]