19376005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 28646784

約数和(自身を除く): 9270779

約数列:

[1, 5, 11, 17, 23, 53, 55, 85, 115, 187, 253, 265, 289, 391, 583, 901, 935, 1219, 1265, 1445, 1955, 2915, 3179, 4301, 4505, 6095, 6647, 9911, 13409, 15317, 15895, 20723, 21505, 33235, 49555, 67045, 73117, 76585, 103615, 168487, 227953, 352291, 365585, 842435, 1139765, 1761455, 3875201, 19376005]

約数ペア:

[(1, 19376005), (5, 3875201), (11, 1761455), (17, 1139765), (23, 842435), (53, 365585), (55, 352291), (85, 227953), (115, 168487), (187, 103615), (253, 76585), (265, 73117), (289, 67045), (391, 49555), (583, 33235), (901, 21505), (935, 20723), (1219, 15895), (1265, 15317), (1445, 13409), (1955, 9911), (2915, 6647), (3179, 6095), (4301, 4505)]