199836520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{384301}}^1$

素因数の和:384325

約数の個数: 32

約数和(自身を含む): 484220520

約数和(自身を除く): 284384000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 384301, 768602, 1537204, 1921505, 3074408, 3843010, 4995913, 7686020, 9991826, 15372040, 19983652, 24979565, 39967304, 49959130, 99918260, 199836520]

約数ペア:

[(1, 199836520), (2, 99918260), (4, 49959130), (5, 39967304), (8, 24979565), (10, 19983652), (13, 15372040), (20, 9991826), (26, 7686020), (40, 4995913), (52, 3843010), (65, 3074408), (104, 1921505), (130, 1537204), (260, 768602), (520, 384301)]