20391410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{691}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 39759552

約数和(自身を除く): 19368142

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 227, 454, 691, 1135, 1382, 2270, 2951, 3455, 5902, 6910, 8983, 14755, 17966, 29510, 44915, 89830, 156857, 313714, 784285, 1568570, 2039141, 4078282, 10195705, 20391410]

約数ペア:

[(1, 20391410), (2, 10195705), (5, 4078282), (10, 2039141), (13, 1568570), (26, 784285), (65, 313714), (130, 156857), (227, 89830), (454, 44915), (691, 29510), (1135, 17966), (1382, 14755), (2270, 8983), (2951, 6910), (3455, 5902)]