289905875

素因数分解:

$5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8081}}^1$

素因数の和:8144

約数の個数: 32

約数和(自身を含む): 423626112

約数和(自身を除く): 133720237

約数列:

[1, 5, 7, 25, 35, 41, 125, 175, 205, 287, 875, 1025, 1435, 5125, 7175, 8081, 35875, 40405, 56567, 202025, 282835, 331321, 1010125, 1414175, 1656605, 2319247, 7070875, 8283025, 11596235, 41415125, 57981175, 289905875]

約数ペア:

[(1, 289905875), (5, 57981175), (7, 41415125), (25, 11596235), (35, 8283025), (41, 7070875), (125, 2319247), (175, 1656605), (205, 1414175), (287, 1010125), (875, 331321), (1025, 282835), (1435, 202025), (5125, 56567), (7175, 40405), (8081, 35875)]