258940855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 345254400

約数和(自身を除く): 86313545

約数列:

[1, 5, 17, 29, 73, 85, 145, 365, 493, 1241, 1439, 2117, 2465, 6205, 7195, 10585, 24463, 35989, 41731, 105047, 122315, 179945, 208655, 525235, 709427, 1785799, 3046363, 3547135, 8928995, 15231815, 51788171, 258940855]

約数ペア:

[(1, 258940855), (5, 51788171), (17, 15231815), (29, 8928995), (73, 3547135), (85, 3046363), (145, 1785799), (365, 709427), (493, 525235), (1241, 208655), (1439, 179945), (2117, 122315), (2465, 105047), (6205, 41731), (7195, 35989), (10585, 24463)]