205122855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:736

約数の個数: 64

約数和(自身を含む): 394610688

約数和(自身を除く): 189487833

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 157, 161, 345, 471, 483, 541, 785, 805, 1099, 1623, 2355, 2415, 2705, 3297, 3611, 3787, 5495, 8115, 10833, 11361, 12443, 16485, 18055, 18935, 25277, 37329, 54165, 56805, 62215, 75831, 84937, 87101, 126385, 186645, 254811, 261303, 379155, 424685, 435505, 594559, 1274055, 1306515, 1783677, 1953551, 2972795, 5860653, 8918385, 9767755, 13674857, 29303265, 41024571, 68374285, 205122855]

約数ペア:

[(1, 205122855), (3, 68374285), (5, 41024571), (7, 29303265), (15, 13674857), (21, 9767755), (23, 8918385), (35, 5860653), (69, 2972795), (105, 1953551), (115, 1783677), (157, 1306515), (161, 1274055), (345, 594559), (471, 435505), (483, 424685), (541, 379155), (785, 261303), (805, 254811), (1099, 186645), (1623, 126385), (2355, 87101), (2415, 84937), (2705, 75831), (3297, 62215), (3611, 56805), (3787, 54165), (5495, 37329), (8115, 25277), (10833, 18935), (11361, 18055), (12443, 16485)]