31969640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18587}}^1$

素因数の和:18641

約数の個数: 32

約数和(自身を含む): 73608480

約数和(自身を除く): 41638840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18587, 37174, 74348, 92935, 148696, 185870, 371740, 743480, 799241, 1598482, 3196964, 3996205, 6393928, 7992410, 15984820, 31969640]

約数ペア:

[(1, 31969640), (2, 15984820), (4, 7992410), (5, 6393928), (8, 3996205), (10, 3196964), (20, 1598482), (40, 799241), (43, 743480), (86, 371740), (172, 185870), (215, 148696), (344, 92935), (430, 74348), (860, 37174), (1720, 18587)]