721360

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 40

約数和(自身を含む): 1714176

約数和(自身を除く): 992816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 127, 142, 254, 284, 355, 508, 568, 635, 710, 1016, 1136, 1270, 1420, 2032, 2540, 2840, 5080, 5680, 9017, 10160, 18034, 36068, 45085, 72136, 90170, 144272, 180340, 360680, 721360]

約数ペア:

[(1, 721360), (2, 360680), (4, 180340), (5, 144272), (8, 90170), (10, 72136), (16, 45085), (20, 36068), (40, 18034), (71, 10160), (80, 9017), (127, 5680), (142, 5080), (254, 2840), (284, 2540), (355, 2032), (508, 1420), (568, 1270), (635, 1136), (710, 1016)]