12839320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24691}}^1$

素因数の和:24715

約数の個数: 32

約数和(自身を含む): 31111920

約数和(自身を除く): 18272600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24691, 49382, 98764, 123455, 197528, 246910, 320983, 493820, 641966, 987640, 1283932, 1604915, 2567864, 3209830, 6419660, 12839320]

約数ペア:

[(1, 12839320), (2, 6419660), (4, 3209830), (5, 2567864), (8, 1604915), (10, 1283932), (13, 987640), (20, 641966), (26, 493820), (40, 320983), (52, 246910), (65, 197528), (104, 123455), (130, 98764), (260, 49382), (520, 24691)]