18984520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3623}}^1$

素因数の和:3765

約数の個数: 32

約数和(自身を含む): 43053120

約数和(自身を除く): 24068600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3623, 5240, 7246, 14492, 18115, 28984, 36230, 72460, 144920, 474613, 949226, 1898452, 2373065, 3796904, 4746130, 9492260, 18984520]

約数ペア:

[(1, 18984520), (2, 9492260), (4, 4746130), (5, 3796904), (8, 2373065), (10, 1898452), (20, 949226), (40, 474613), (131, 144920), (262, 72460), (524, 36230), (655, 28984), (1048, 18115), (1310, 14492), (2620, 7246), (3623, 5240)]