20179242520

素因数分解:

$2^3\times 5^1\times {\mathrm{2459}}^1\times {\mathrm{205157}}^1$

素因数の和:207627

約数の個数: 32

約数和(自身を含む): 45421981200

約数和(自身を除く): 25242738680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2459, 4918, 9836, 12295, 19672, 24590, 49180, 98360, 205157, 410314, 820628, 1025785, 1641256, 2051570, 4103140, 8206280, 504481063, 1008962126, 2017924252, 2522405315, 4035848504, 5044810630, 10089621260, 20179242520]

約数ペア:

[(1, 20179242520), (2, 10089621260), (4, 5044810630), (5, 4035848504), (8, 2522405315), (10, 2017924252), (20, 1008962126), (40, 504481063), (2459, 8206280), (4918, 4103140), (9836, 2051570), (12295, 1641256), (19672, 1025785), (24590, 820628), (49180, 410314), (98360, 205157)]