20355684

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 49201152

約数和(自身を除く): 28845468

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 103, 129, 172, 206, 258, 309, 383, 412, 516, 618, 766, 1149, 1236, 1532, 2298, 4429, 4596, 8858, 13287, 16469, 17716, 26574, 32938, 39449, 49407, 53148, 65876, 78898, 98814, 118347, 157796, 197628, 236694, 473388, 1696307, 3392614, 5088921, 6785228, 10177842, 20355684]

約数ペア:

[(1, 20355684), (2, 10177842), (3, 6785228), (4, 5088921), (6, 3392614), (12, 1696307), (43, 473388), (86, 236694), (103, 197628), (129, 157796), (172, 118347), (206, 98814), (258, 78898), (309, 65876), (383, 53148), (412, 49407), (516, 39449), (618, 32938), (766, 26574), (1149, 17716), (1236, 16469), (1532, 13287), (2298, 8858), (4429, 4596)]