20215712

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:282

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 25634176

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 88, 92, 121, 176, 184, 227, 242, 253, 352, 368, 454, 484, 506, 736, 908, 968, 1012, 1816, 1936, 2024, 2497, 2783, 3632, 3872, 4048, 4994, 5221, 5566, 7264, 8096, 9988, 10442, 11132, 19976, 20884, 22264, 27467, 39952, 41768, 44528, 54934, 57431, 79904, 83536, 89056, 109868, 114862, 167072, 219736, 229724, 439472, 459448, 631741, 878944, 918896, 1263482, 1837792, 2526964, 5053928, 10107856, 20215712]

約数ペア:

[(1, 20215712), (2, 10107856), (4, 5053928), (8, 2526964), (11, 1837792), (16, 1263482), (22, 918896), (23, 878944), (32, 631741), (44, 459448), (46, 439472), (88, 229724), (92, 219736), (121, 167072), (176, 114862), (184, 109868), (227, 89056), (242, 83536), (253, 79904), (352, 57431), (368, 54934), (454, 44528), (484, 41768), (506, 39952), (736, 27467), (908, 22264), (968, 20884), (1012, 19976), (1816, 11132), (1936, 10442), (2024, 9988), (2497, 8096), (2783, 7264), (3632, 5566), (3872, 5221), (4048, 4994)]