2941640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5657}}^1$

素因数の和:5681

約数の個数: 32

約数和(自身を含む): 7129080

約数和(自身を除く): 4187440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 5657, 11314, 22628, 28285, 45256, 56570, 73541, 113140, 147082, 226280, 294164, 367705, 588328, 735410, 1470820, 2941640]

約数ペア:

[(1, 2941640), (2, 1470820), (4, 735410), (5, 588328), (8, 367705), (10, 294164), (13, 226280), (20, 147082), (26, 113140), (40, 73541), (52, 56570), (65, 45256), (104, 28285), (130, 22628), (260, 11314), (520, 5657)]