1388692700

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{127403}}^1$

素因数の和:127526

約数の個数: 36

約数和(自身を含む): 3041133480

約数和(自身を除く): 1652440780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 10900, 127403, 254806, 509612, 637015, 1274030, 2548060, 3185075, 6370150, 12740300, 13886927, 27773854, 55547708, 69434635, 138869270, 277738540, 347173175, 694346350, 1388692700]

約数ペア:

[(1, 1388692700), (2, 694346350), (4, 347173175), (5, 277738540), (10, 138869270), (20, 69434635), (25, 55547708), (50, 27773854), (100, 13886927), (109, 12740300), (218, 6370150), (436, 3185075), (545, 2548060), (1090, 1274030), (2180, 637015), (2725, 509612), (5450, 254806), (10900, 127403)]