215848780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{7307}}^1$

素因数の和:7534

約数の個数: 48

約数和(自身を含む): 520563456

約数和(自身を除く): 304714676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 7307, 7385, 14614, 14770, 29228, 29540, 36535, 51149, 73070, 102298, 146140, 204596, 255745, 511490, 1022980, 1541777, 3083554, 6167108, 7708885, 10792439, 15417770, 21584878, 30835540, 43169756, 53962195, 107924390, 215848780]

約数ペア:

[(1, 215848780), (2, 107924390), (4, 53962195), (5, 43169756), (7, 30835540), (10, 21584878), (14, 15417770), (20, 10792439), (28, 7708885), (35, 6167108), (70, 3083554), (140, 1541777), (211, 1022980), (422, 511490), (844, 255745), (1055, 204596), (1477, 146140), (2110, 102298), (2954, 73070), (4220, 51149), (5908, 36535), (7307, 29540), (7385, 29228), (14614, 14770)]