280521777

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{631}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 414996480

約数和(自身を除く): 134474703

約数列:

[1, 3, 17, 23, 51, 69, 379, 391, 631, 1137, 1173, 1893, 6443, 8717, 10727, 14513, 19329, 26151, 32181, 43539, 148189, 239149, 246721, 444567, 717447, 740163, 4065533, 5500427, 12196599, 16501281, 93507259, 280521777]

約数ペア:

[(1, 280521777), (3, 93507259), (17, 16501281), (23, 12196599), (51, 5500427), (69, 4065533), (379, 740163), (391, 717447), (631, 444567), (1137, 246721), (1173, 239149), (1893, 148189), (6443, 43539), (8717, 32181), (10727, 26151), (14513, 19329)]