641707199

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 786309120

約数和(自身を除く): 144601921

約数列:

[1, 7, 23, 53, 157, 161, 371, 479, 1099, 1219, 3353, 3611, 8321, 8533, 11017, 25277, 25387, 58247, 75203, 77119, 177709, 191383, 526421, 583901, 1339681, 1729669, 3985759, 4087307, 12107683, 27900313, 91672457, 641707199]

約数ペア:

[(1, 641707199), (7, 91672457), (23, 27900313), (53, 12107683), (157, 4087307), (161, 3985759), (371, 1729669), (479, 1339681), (1099, 583901), (1219, 526421), (3353, 191383), (3611, 177709), (8321, 77119), (8533, 75203), (11017, 58247), (25277, 25387)]