31332040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12841}}^1$

素因数の和:12913

約数の個数: 32

約数和(自身を含む): 71658360

約数和(自身を除く): 40326320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 12841, 25682, 51364, 64205, 102728, 128410, 256820, 513640, 783301, 1566602, 3133204, 3916505, 6266408, 7833010, 15666020, 31332040]

約数ペア:

[(1, 31332040), (2, 15666020), (4, 7833010), (5, 6266408), (8, 3916505), (10, 3133204), (20, 1566602), (40, 783301), (61, 513640), (122, 256820), (244, 128410), (305, 102728), (488, 64205), (610, 51364), (1220, 25682), (2440, 12841)]