254180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 544320

約数和(自身を除く): 290140

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 179, 284, 355, 358, 710, 716, 895, 1420, 1790, 3580, 12709, 25418, 50836, 63545, 127090, 254180]

約数ペア:

[(1, 254180), (2, 127090), (4, 63545), (5, 50836), (10, 25418), (20, 12709), (71, 3580), (142, 1790), (179, 1420), (284, 895), (355, 716), (358, 710)]