172820180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{664693}}^1$

素因数の和:664715

約数の個数: 24

約数和(自身を含む): 390840072

約数和(自身を除く): 218019892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 664693, 1329386, 2658772, 3323465, 6646930, 8641009, 13293860, 17282018, 34564036, 43205045, 86410090, 172820180]

約数ペア:

[(1, 172820180), (2, 86410090), (4, 43205045), (5, 34564036), (10, 17282018), (13, 13293860), (20, 8641009), (26, 6646930), (52, 3323465), (65, 2658772), (130, 1329386), (260, 664693)]