278327995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1663}}^1$

素因数の和:1875

約数の個数: 32

約数和(自身を含む): 388177920

約数和(自身を除く): 109849925

約数列:

[1, 5, 11, 17, 55, 85, 179, 187, 895, 935, 1663, 1969, 3043, 8315, 9845, 15215, 18293, 28271, 33473, 91465, 141355, 167365, 297677, 310981, 1488385, 1554905, 3274447, 5060509, 16372235, 25302545, 55665599, 278327995]

約数ペア:

[(1, 278327995), (5, 55665599), (11, 25302545), (17, 16372235), (55, 5060509), (85, 3274447), (179, 1554905), (187, 1488385), (895, 310981), (935, 297677), (1663, 167365), (1969, 141355), (3043, 91465), (8315, 33473), (9845, 28271), (15215, 18293)]