19311490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 22678910

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 34, 46, 55, 85, 110, 115, 170, 187, 230, 253, 374, 391, 449, 506, 782, 898, 935, 1265, 1870, 1955, 2245, 2530, 3910, 4301, 4490, 4939, 7633, 8602, 9878, 10327, 15266, 20654, 21505, 24695, 38165, 43010, 49390, 51635, 76330, 83963, 103270, 113597, 167926, 175559, 227194, 351118, 419815, 567985, 839630, 877795, 1135970, 1755590, 1931149, 3862298, 9655745, 19311490]

約数ペア:

[(1, 19311490), (2, 9655745), (5, 3862298), (10, 1931149), (11, 1755590), (17, 1135970), (22, 877795), (23, 839630), (34, 567985), (46, 419815), (55, 351118), (85, 227194), (110, 175559), (115, 167926), (170, 113597), (187, 103270), (230, 83963), (253, 76330), (374, 51635), (391, 49390), (449, 43010), (506, 38165), (782, 24695), (898, 21505), (935, 20654), (1265, 15266), (1870, 10327), (1955, 9878), (2245, 8602), (2530, 7633), (3910, 4939), (4301, 4490)]