28711025

素因数分解:

$5^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{457}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 40890240

約数和(自身を除く): 12179215

約数列:

[1, 5, 7, 25, 35, 175, 359, 457, 1795, 2285, 2513, 3199, 8975, 11425, 12565, 15995, 62825, 79975, 164063, 820315, 1148441, 4101575, 5742205, 28711025]

約数ペア:

[(1, 28711025), (5, 5742205), (7, 4101575), (25, 1148441), (35, 820315), (175, 164063), (359, 79975), (457, 62825), (1795, 15995), (2285, 12565), (2513, 11425), (3199, 8975)]