20829320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27407}}^1$

素因数の和:27437

約数の個数: 32

約数和(自身を含む): 49334400

約数和(自身を除く): 28505080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27407, 54814, 109628, 137035, 219256, 274070, 520733, 548140, 1041466, 1096280, 2082932, 2603665, 4165864, 5207330, 10414660, 20829320]

約数ペア:

[(1, 20829320), (2, 10414660), (4, 5207330), (5, 4165864), (8, 2603665), (10, 2082932), (19, 1096280), (20, 1041466), (38, 548140), (40, 520733), (76, 274070), (95, 219256), (152, 137035), (190, 109628), (380, 54814), (760, 27407)]