20201772

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 28230612

約数列:

[1, 2, 3, 4, 6, 12, 71, 131, 142, 181, 213, 262, 284, 362, 393, 426, 524, 543, 724, 786, 852, 1086, 1572, 2172, 9301, 12851, 18602, 23711, 25702, 27903, 37204, 38553, 47422, 51404, 55806, 71133, 77106, 94844, 111612, 142266, 154212, 284532, 1683481, 3366962, 5050443, 6733924, 10100886, 20201772]

約数ペア:

[(1, 20201772), (2, 10100886), (3, 6733924), (4, 5050443), (6, 3366962), (12, 1683481), (71, 284532), (131, 154212), (142, 142266), (181, 111612), (213, 94844), (262, 77106), (284, 71133), (362, 55806), (393, 51404), (426, 47422), (524, 38553), (543, 37204), (724, 27903), (786, 25702), (852, 23711), (1086, 18602), (1572, 12851), (2172, 9301)]