42155380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 91763280

約数和(自身を除く): 49607900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 404, 410, 505, 509, 820, 1010, 1018, 2020, 2036, 2545, 4141, 5090, 8282, 10180, 16564, 20705, 20869, 41410, 41738, 51409, 82820, 83476, 102818, 104345, 205636, 208690, 257045, 417380, 514090, 1028180, 2107769, 4215538, 8431076, 10538845, 21077690, 42155380]

約数ペア:

[(1, 42155380), (2, 21077690), (4, 10538845), (5, 8431076), (10, 4215538), (20, 2107769), (41, 1028180), (82, 514090), (101, 417380), (164, 257045), (202, 208690), (205, 205636), (404, 104345), (410, 102818), (505, 83476), (509, 82820), (820, 51409), (1010, 41738), (1018, 41410), (2020, 20869), (2036, 20705), (2545, 16564), (4141, 10180), (5090, 8282)]