2840080

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:415

約数の個数: 40

約数和(自身を含む): 6678144

約数和(自身を除く): 3838064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 271, 524, 542, 655, 1048, 1084, 1310, 1355, 2096, 2168, 2620, 2710, 4336, 5240, 5420, 10480, 10840, 21680, 35501, 71002, 142004, 177505, 284008, 355010, 568016, 710020, 1420040, 2840080]

約数ペア:

[(1, 2840080), (2, 1420040), (4, 710020), (5, 568016), (8, 355010), (10, 284008), (16, 177505), (20, 142004), (40, 71002), (80, 35501), (131, 21680), (262, 10840), (271, 10480), (524, 5420), (542, 5240), (655, 4336), (1048, 2710), (1084, 2620), (1310, 2168), (1355, 2096)]