20356715905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{31397}}^1$

素因数の和:31569

約数の個数: 32

約数和(自身を含む): 26042757120

約数和(自身を除く): 5686041215

約数列:

[1, 5, 31, 47, 89, 155, 235, 445, 1457, 2759, 4183, 7285, 13795, 20915, 31397, 129673, 156985, 648365, 973307, 1475659, 2794333, 4866535, 7378295, 13971665, 45745429, 86624323, 131333651, 228727145, 433121615, 656668255, 4071343181, 20356715905]

約数ペア:

[(1, 20356715905), (5, 4071343181), (31, 656668255), (47, 433121615), (89, 228727145), (155, 131333651), (235, 86624323), (445, 45745429), (1457, 13971665), (2759, 7378295), (4183, 4866535), (7285, 2794333), (13795, 1475659), (20915, 973307), (31397, 648365), (129673, 156985)]