19886390

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{757}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 37329984

約数和(自身を除く): 17443594

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 757, 1514, 2627, 3785, 5254, 7570, 13135, 26270, 28009, 53747, 56018, 107494, 140045, 268735, 280090, 537470, 1988639, 3977278, 9943195, 19886390]

約数ペア:

[(1, 19886390), (2, 9943195), (5, 3977278), (10, 1988639), (37, 537470), (71, 280090), (74, 268735), (142, 140045), (185, 107494), (355, 56018), (370, 53747), (710, 28009), (757, 26270), (1514, 13135), (2627, 7570), (3785, 5254)]