20416528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{373}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 43407936

約数和(自身を除く): 22991408

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 311, 373, 622, 746, 1244, 1492, 2488, 2984, 3421, 4103, 4976, 5968, 6842, 8206, 13684, 16412, 27368, 32824, 54736, 65648, 116003, 232006, 464012, 928024, 1276033, 1856048, 2552066, 5104132, 10208264, 20416528]

約数ペア:

[(1, 20416528), (2, 10208264), (4, 5104132), (8, 2552066), (11, 1856048), (16, 1276033), (22, 928024), (44, 464012), (88, 232006), (176, 116003), (311, 65648), (373, 54736), (622, 32824), (746, 27368), (1244, 16412), (1492, 13684), (2488, 8206), (2984, 6842), (3421, 5968), (4103, 4976)]