90378280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{17791}}^1$

素因数の和:17929

約数の個数: 32

約数和(自身を含む): 204963840

約数和(自身を除く): 114585560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 17791, 35582, 71164, 88955, 142328, 177910, 355820, 711640, 2259457, 4518914, 9037828, 11297285, 18075656, 22594570, 45189140, 90378280]

約数ペア:

[(1, 90378280), (2, 45189140), (4, 22594570), (5, 18075656), (8, 11297285), (10, 9037828), (20, 4518914), (40, 2259457), (127, 711640), (254, 355820), (508, 177910), (635, 142328), (1016, 88955), (1270, 71164), (2540, 35582), (5080, 17791)]