31079120

素因数分解:

$2^4\times 5^1\times {\mathrm{388489}}^1$

素因数の和:388502

約数の個数: 20

約数和(自身を含む): 72259140

約数和(自身を除く): 41180020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388489, 776978, 1553956, 1942445, 3107912, 3884890, 6215824, 7769780, 15539560, 31079120]

約数ペア:

[(1, 31079120), (2, 15539560), (4, 7769780), (5, 6215824), (8, 3884890), (10, 3107912), (16, 1942445), (20, 1553956), (40, 776978), (80, 388489)]