83940520

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{1613}}^1$

素因数の和:2925

約数の個数: 32

約数和(自身を含む): 189128520

約数和(自身を除く): 105188000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 1613, 2602, 3226, 5204, 6452, 6505, 8065, 10408, 12904, 13010, 16130, 26020, 32260, 52040, 64520, 2098513, 4197026, 8394052, 10492565, 16788104, 20985130, 41970260, 83940520]

約数ペア:

[(1, 83940520), (2, 41970260), (4, 20985130), (5, 16788104), (8, 10492565), (10, 8394052), (20, 4197026), (40, 2098513), (1301, 64520), (1613, 52040), (2602, 32260), (3226, 26020), (5204, 16130), (6452, 13010), (6505, 12904), (8065, 10408)]