72472660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278741}}^1$

素因数の和:278763

約数の個数: 24

約数和(自身を含む): 163900296

約数和(自身を除く): 91427636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 278741, 557482, 1114964, 1393705, 2787410, 3623633, 5574820, 7247266, 14494532, 18118165, 36236330, 72472660]

約数ペア:

[(1, 72472660), (2, 36236330), (4, 18118165), (5, 14494532), (10, 7247266), (13, 5574820), (20, 3623633), (26, 2787410), (52, 1393705), (65, 1114964), (130, 557482), (260, 278741)]