647980035

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 1094037504

約数和(自身を除く): 446057469

約数列:

[1, 3, 5, 15, 23, 69, 115, 127, 345, 381, 529, 635, 643, 1587, 1905, 1929, 2645, 2921, 3215, 7935, 8763, 9645, 14605, 14789, 43815, 44367, 67183, 73945, 81661, 201549, 221835, 244983, 335915, 340147, 408305, 1007745, 1020441, 1224915, 1700735, 1878203, 5102205, 5634609, 9391015, 28173045, 43198669, 129596007, 215993345, 647980035]

約数ペア:

[(1, 647980035), (3, 215993345), (5, 129596007), (15, 43198669), (23, 28173045), (69, 9391015), (115, 5634609), (127, 5102205), (345, 1878203), (381, 1700735), (529, 1224915), (635, 1020441), (643, 1007745), (1587, 408305), (1905, 340147), (1929, 335915), (2645, 244983), (2921, 221835), (3215, 201549), (7935, 81661), (8763, 73945), (9645, 67183), (14605, 44367), (14789, 43815)]